Cctv newsOn the afternoon of March 1st, the State Council Press Office held a series of press conferences on the theme of "Opening by authoritative departments", introducing the situation of "accelerating new industrialization, strengthening and improving the real economy" and answering reporters’ questions.

　　Xin Guobin, Vice Minister of the Ministry of Industry and Information Technology, said that in 2022, the production and sales of new energy vehicles in China reached 7.058 million and 6.887 million, up by 96.7% and 93.4% respectively, ranking first in the world for eight consecutive years. Since 2012, when China promulgated and implemented the Development Plan of Energy Saving and New Energy Vehicle Industry, the average annual compound growth rate of new energy vehicle sales reached 87%, and the cumulative promotion of new energy vehicles reached 15.96 million, nearly 16 million. China has become an important guiding force for the electrification transformation of the global automobile industry.

　　This year, the new energy automobile industry will maintain a good development trend, and production and sales will achieve steady growth. The Ministry of Industry and Information Technology will focus on promoting the work from five aspects.

　　First, we should strengthen overall planning. Further improve and perfect the coordinated promotion mechanism for the development of new energy automobile industry, and coordinate the overall work of electrification, networking and intelligent development. Focusing on technical research, popularization and application, infrastructure construction, etc., we will continue to cultivate independent brands with high innovation level, strong comprehensive ability and international competitiveness.

　　The second is to support innovation breakthroughs. We will focus on supporting leading enterprises to play a leading role and accelerate the technical research and industrial application of new systems such as batteries, automotive chips and automotive operating systems. Start the pilot of intelligent networked vehicle access and road traffic, accelerate the technical application of 5G vehicle-road coordination, and promote the coordinated development of electrification and intelligent networked.

　　The third is to further increase the promotion and application. We will carry out pilot projects for the comprehensive electrification of vehicles in public areas, and further improve the electrification level of vehicles in official vehicles, taxis, postal express delivery, sanitation and other fields. It is necessary to work with relevant departments to study and clarify the continuation policies such as tax reduction and exemption for new energy vehicles as soon as possible, and revise and issue the "double points" management method to stabilize market expectations.

　　The fourth is to improve service support capabilities. It is necessary to speed up the development of domestic resources, stabilize international cooperation and supply, and ensure the supply and price stability of key raw materials. It is necessary to improve the recycling system, strengthen key technologies such as intelligent disassembly, and improve the recycling level of power batteries.

　　The fifth is to promote open development. We will continue to implement opening-up measures in the automotive sector, give play to the role of multilateral and bilateral cooperation mechanisms, and support enterprises, research institutions and industry organizations to carry out exchanges and cooperation in the fields of trade and investment, technology research and development, and standard setting, so as to achieve win-win development.

CCTV News:This year, the global economic growth slowed down obviously, which brought great pressure and challenges to stabilizing foreign trade. However, after a series of comprehensive measures to stabilize foreign trade support policies, in the first eight months of this year, China’s import and export of goods were basically the same year-on-year. Among them, exports have achieved month-on-month growth for three consecutive months, showing strong resilience, and various localities and departments are also trying their best to increase the intensity of service enterprises.

Multi-party efforts to stabilize foreign trade measures frequently "innovate"

As a new foreign trade format with rapid development in China, cross-border e-commerce is an important way for many enterprises to obtain orders. Since the beginning of this year, in order to get more orders, many enterprises have chosen to enter overseas cross-border e-commerce platforms, but overseas platforms also have the risk of bankruptcy. How to solve the worries of enterprises? Let’s look at the practice in Ningbo, Zhejiang.　

The products of this foreign trade enterprise in Ningbo, Zhejiang Province cover furniture and household products, fitness products and holiday products. Since it was sold on an e-commerce platform in North America, it has exceeded $10 million in sales in the first year. At present, enterprises intend to enter more overseas e-commerce platforms.

Zhou Wenyi told reporters that most cross-border e-commerce platforms require sellers to open accounts in the platform. After consumers place an order for payment, it will take half a month to two months for sellers to withdraw the payment. During this period, once the platform encounters risks, the sales money of the enterprise may not be collected.

In order to enable the majority of small and medium-sized enterprises to expand the market with the help of cross-border e-commerce platform, China’s only policy insurance company — — According to this pain point, China Xinbao innovatively launched cross-border e-commerce insurance to provide security for the export of cross-border e-commerce products.

According to reports, the rate of cross-border e-commerce insurance is comprehensively determined according to factors such as insurance scale, account period, industry of the enterprise, and credit standing of cross-border e-commerce platform. Take Ningbo as an example, their insurance cost is equivalent to about 2% of the product profit. If there is a risk on the platform after insurance, China Xinbao will generally complete the fixed loss compensation within 4 months, and the compensation amount is 80% of the sales & mdash; 90%。

It is understood that since the pilot of cross-border e-commerce insurance in Ningbo, more than 10 enterprises have insured, and it is estimated that the guaranteed sales amount will exceed 1 billion yuan.

Take the initiative as a comparison standard to help foreign trade enterprises deliver orders

This year, some enterprises in China have also received many overseas urgent orders, but due to technical barriers in standards, the delivery of orders is not timely. In Yangzhou, Jiangsu Province, the local inspection and testing department took the initiative to help enterprises solve the problem of inconsistency between national standards and international standards and remove obstacles for enterprises to deliver orders.

The products of this manufacturing enterprise in Yangzhou, Jiangsu Province are widely used in offshore wind power, bridges and docks, high-speed rail subways and other fields. Since the beginning of this year, the overseas customers of products have been expanding, but many new customers require enterprises to provide product testing reports based on international standards, while the testing reports of these products were based on national standards before, which made enterprises difficult.

The enterprise found the local inspection and testing department, carefully studied these international standards after understanding the situation, and compared them with domestic standards. Through comparison, it was found that all the international standards involved had been adopted by national standards.

Liu Chang introduced that they took the initiative to face foreign customers, introduced the international standards adopted in the national standards one by one, and supplemented the corresponding explanations, so that foreign customers recognized the test report. At present, in the field of steel pipe piles, China’s testing and certification by national standards is equivalent to international standards, and it has been recognized and adopted in Canada, Australia and other countries.

Moreover, in order to complete the delivery of the order as soon as possible, the time for issuing the test report has also been greatly improved.

Set up special foreign trade credit to support enterprises to "go to sea"

Since the beginning of the third quarter, policy-oriented financial institutions have continuously increased credit support in the field of foreign trade, and helped enterprises to speed up their "going out to sea" by setting up special foreign trade credit.

At the cargo terminal of Shuangliu International Airport in Chengdu, Sichuan, the staff of this air freight enterprise are busy playing the board and sending 58 tons of e-commerce products to Europe.

Dong Zhijian told reporters that at present, the proportion of cross-border e-commerce goods they carry has increased from 10% last year to about 40%. In order to meet the cross-border transportation needs of e-commerce customers, we have been actively expanding routes this year, but now enterprises are also facing the problem of tight funds.

How to solve the financial problems faced by foreign trade enterprises? Not long ago, the Sichuan Provincial Department of Commerce and The Export-Import Bank of China Sichuan Branch issued a number of measures, including setting up a special credit line of 50 billion yuan for foreign trade and expanding preferential policies for import financing, to provide policy financial support for stabilizing foreign trade.

In response to the financial needs of this enterprise, the newly established 50 billion yuan special credit line for foreign trade soon landed its first credit business, granting nearly 2.4 billion yuan of credit to enterprises and issuing nearly 1.2 billion yuan of loans and import credit to foreign trade enterprises. With the support of financial policy, next month, enterprises will add freight routes from Chengdu to Liege, Belgium, which will not only support their own foreign trade business, but also help cross-border e-commerce enterprises to quickly "go out to sea".

More news is in the "Donggang Release" video number.

From May 1, 2024 to September 30, 2024, all vaccination units in Donggang District have implemented summer working hours. In order to facilitate the majority of community residents and parents and friends of school-age children to master the accurate opening time, the address and opening time of vaccination units in our district are now announced as follows:

Original title: "It’s about vaccination! 》

Read the original text

In the early morning of September 10th, Apple held a special event for new products in autumn, and new products such as iPhone 16 series, Apple Watch Series 10 and AirPods 4 officially appeared.

In this special event, the most eye-catching new products are naturally the iPhone 16 series, especially the two Pro models, which are bigger and stronger.Even Apple introduced at the time of release: iPhone 16 Pro Max is the largest display size iPhone so far.

(Source: Apple Newsroom)

In fact, there are two reasons why Pro Max is popular all over the world: First, the display screen is large enough, and the experience of playing games and watching videos is cool enough;The other is that the battery life is enough. Under the blessing of over 4000 mAh capacity and ProMotion, it is almost the king of battery life of every generation of iPhone.

When releasing the iPhone 16 series, Apple said,Thanks to the new internal layout design, the heat dissipation performance of iPhone 16 Pro (and MAX) has been greatly improved, and the battery life has been improved. The low power consumption of A18 chip and the AI function of iOS18 further enhance the endurance of iPhone 16 Pro (and MAX).

So, what is the real performance of iPhone 16 battery life? Xiao Lei bought the iPhone 16 Pro Max when he was hungry for the first time (note: it is not a "media machine", so it can be objectively evaluated without considering Apple’s feelings). What is the battery life performance of this machine? Can you refresh the iPhone life record? After two days of experience, Xiao Lei has the answer.

The battery capacity increased by 5.5% year-on-year, but it is still poor in the industry.

The most significant upgrade of iPhone 16 Pro Max compared with iPhone 15 Pro Max is that its size has become larger, from 6.7 inches in the previous generation to 6.9 inches.

Although the paper parameters have increased by 0.2 inches, Apple has used extremely narrow bezel design on both models of this generation of iPhone 16 Pro series, so there is not much difference in grip and visual perception. IPhone 16 Pro Max has a width of 77.6 mm and a height of 163 mm, while iPhone 15 Pro Max has a width of 76.7 mm and a height of 159.9 mm..

(Source: Lei Technology filmed left: iPhone 16 Pro, right: iPhone 16 Pro Max)

As for the weight of the whole machine, the iPhone 16 Pro Max has returned to 227g, which is roughly equivalent to the weight of the iPhone 12 Pro Max.

It is not difficult to see from the measurements that the overall size and weight of the iPhone 16 Pro Max have not changed much, but the length is longer, and the battery capacity should not change significantly.

Sure enough, according to the disassembly report, the battery capacity of iPhone 16 Pro Max is 4,685 mAh. In contrast, the battery capacity of iPhone 15 Pro Max is 4,441 mAh, an increase of about 5.5%.

(Source: techinsights)

It is worth noting that this generation of iPhone also has some differences in battery technology.The iPhone 16 Pro uses a steel case battery, while the iPhone 16 Pro Max is still an L-shaped soft bag battery.In fact, the difference between the two batteries is mainly the form and detachable design. According to the current information, Apple has not improved the energy density of the steel shell battery of the iPhone 16 Pro.

Battery technology is the hottest topic in the mobile phone market in 2024, and almost all Android manufacturers are trying to maximize the battery life. For example, the battery energy density of vivo S19 reaches 809Wh/L, which makes it possible to pack a large-capacity battery with 6000 mAh into a 7.19mm body, and the weight of the whole machine is only 193g g.

(Source: vivo)

Just looking at the technical level, the battery capacity of iPhone 16 Pro Max is still "searching" as always. Obviously, it has reached the display area of 6.9 inches, but it has not yet reached the general 5000 mAh. However, we are also very clear that the battery life of mobile phones is often not only about battery capacity, but also closely related to processor energy efficiency, system optimization and other aspects.

Then the question is coming. What is the actual endurance performance of the iPhone 16 Pro Max with less than 5000 mAh battery?

Medium battery life: extreme scenes collapse and excellent daily use.

IPhone 16 Pro Max is different from the previous generation in terms of image strategy, which means that most of the friends who will consider starting this "super cup" at this time period have more audio-visual entertainment needs, such as games and watching movies.

In the game link, we chose League of Legends Mobile Games and Ming Chao. The former is a MOBA mobile game that has been optimized in all clients at present, while the latter is an open world game with little optimization.

1 hour "League of Legends Mobile Games" experience,Power consumption is only 14%The whole fuselage is only warm, and with the phone case, you can hardly feel the heat. It is worth mentioning that iOS 18 supports automatic recognition of mobile games and starts the game mode. After entering this mode, the camera control button will no longer take effect, and friends who are worried about touching it by mistake can rest assured.

On the "Ming Chao", which has hardly been specially optimized, the performance of iPhone 16 Pro Max is more general.The measured power consumption in one hour is 18%, and the whole process is obviously heated, and the heat is concentrated in the middle of the fuselage.Perhaps it is a problem of fever, and the iPhone 16 Pro Max consumes electricity faster in this link.

(Source: Produced by Lei Technology)

I have to say that in this new product activity, Apple specially introduced the fuselage heat dissipation of the iPhone 16 Pro series, but I didn’t expect that the A18 Pro was still difficult to control in extreme scenes (you can search for the special evaluation of the heat dissipation of the iPhone 16 series by Lei Technology).

Back to everyday scenes, such as HDR video viewing, 12% power consumption in one hour, and browsing social platforms, 8% power consumption in one hour.Under the 4-hour limit test, the remaining power of iPhone 16 Pro Max is 48%.

(Source: Lei Technology Drawing)

This achievement is definitely in the middle level in the current smart phone market. After all, the iPhone 16 Pro Max has been defeated in terms of battery capacity. But only 4685 mAh battery can achieve such endurance performance, which is also very good for me.

If we put the scene in our daily life, the battery life of the iPhone 16 Pro Max does have surprises. For example, in the 8-hour test of night sleep with all-weather display turned on, only 7% of electricity was consumed; During commuting time, replying to social platforms such as WeChat and brushing Tik Tok will only consume 4% of electricity in 30 minutes.

(Source: Lei Technology Drawing)

Thanks to the optimization of iOS 18, iPhone 16 Pro Max does have good energy consumption control in daily use. According to the model of frequently replying to WeChat, occasionally brushing social platforms, and coming to two games during lunch break,It’s no problem to use it after a day.But at present, the most power-consuming scene of iPhone 16 Pro Max is 4K video recording, and about half an hour of recording will consume 17% of electricity.If you plan to take it to a concert, then charging treasure is still an essential equipment.

(Source: Lei Technology Drawing)

Although the battery life performance of iPhone 16 Pro Max is not bad, its charging speed still stays at an average of about 27W, and the peak of the network access license prompt is 45W, which lasted for 2 seconds at most, while the power of about 35W lasted for less than 2 minutes. It can be said,IPhone 16 Pro Max is a mobile phone with insufficient endurance.

Write at the end:

IPhone 16 Pro Max has once again set a new battery life record with only 5.5% increase in battery capacity, but for now, it has not opened the gap with Android flagships.

(Source: Produced by Lei Technology)

Android flagships have not used a new generation of batteries, nor have they used the SoC of 3nm process technology, so there is still much room for imagination in the future battery life. In terms of charging, Android flagships have obvious advantages, and they have been generally equipped with more than 50W wired fast charging to provide "quick blood return" ability. In this way, it is not an exaggeration to say that battery life is becoming a shortcoming of the iPhone.

After the whole experience, Xiao Lei believes that if you pay attention to all-weather endurance and there is no need for emergency recharge, then iPhone 16 Pro Max is indeed a good choice; If you value long-term game life, then iPhone 16 Pro Max may not be suitable for you. Of course, if you are used to carrying a charging treasure with you, everything is not a problem.

　　Recently, the increase of adenovirus infection in many places has attracted people’s attention.

　　What is adenovirus? What are the symptoms after infection? How to prevent it? Let’s get to know each other!

　　What diseases can human adenovirus cause?

　　Adenovirus, namely human adenovirus. Human adenovirus is an important pathogen causing acute respiratory infection, which has strong environmental viability and transmission ability. Human adenovirus can cause outbreaks in densely populated and poorly hygienic environments. Human adenovirus includes 7 subgenus.
(A-G) at least 116 types.

　　Because there are many types and different tissue tropism, different tissue and organ diseases are caused.It mainly includes acute respiratory infection, conjunctivitis and gastrointestinal diseases..

　　01.Symptoms of respiratory infection:

　　Acute respiratory infection is the most common, which causes common cold and flu-like symptoms. Typical clinical manifestations include cough, sore throat and fever, and severe cases may lead to pneumonia or even death. Types 3 and 7 in subgenus B are the main types of acute respiratory infection in China, and type 55 is the main type of community-acquired pneumonia in adults. Acute respiratory tract infections caused by type 1 and type 2 in subgenus C and type 4 in subgenus E are also common.

　　02.Symptoms of eye infection:

　　It is also one of the common symptoms of human adenovirus infection, which can causeEpidemic keratoconjunctivitis, acute hemorrhagic conjunctivitis, pharyngeal conjunctival fever, etc.A variety of eye diseases, and in crowded places such as schools, can cause an outbreak of eye infections, and can also cause "swimming pool fever (that is, pharyngeal conjunctival fever, symptoms include persistent high fever, pharyngitis and acute follicular conjunctivitis)". Types 3 and 7 of subgenus B and types 8, 19 and 64 of subgenus D are the main types causing the above infections.

　　03.Gastrointestinal symptoms:

　　Many types of human adenovirus can be replicated in the gastrointestinal tract of infected people and excreted with feces, but only a few types of infection can cause gastroenteritis and infected people appear.Abdominal pain and diarrheaWait for symptoms. Human adenovirus subfamily F type 41 is the main type causing symptoms of gastrointestinal infection.

　　What should I do if I am infected with human adenovirus?

　　Infected with human adenovirus, those with mild symptoms should try to rest at home, reduce going out, go to public places and have close contact with others.Wear a mask scientifically;
coughorsneezeCover your mouth and nose with paper towels or towels; Avoid sharing cups and tableware with others;Wash your hands with soap or hand sanitizer when running underwater.. Once the symptoms get worse, such as persistent high fever, palpitation and shortness of breath, you should go to the hospital in time.

　　How can the public prevent human adenovirus infection?

　　At present, there is no human adenovirus vaccine for the general population at home and abroad.The following measures are suggested to prevent human adenovirus infection:

　　01.Epidemic period of diseaseMinimize going out.andGo to crowded and poorly ventilated places.
Place, to avoid close contact with infected people, contact should beWear a mask scientifically, reduce the risk of respiratory infection.

　　02.Develop good personal hygiene habitsWash your hands frequently and avoid touching important parts such as eyes, nose and mouth with unclean hands.

　　03.Keep indoor ventilation, reduce the risk of transmission.

　　04.canUse chlorine-containing disinfectantsThe environment or surface of the object contacted by human adenovirus infection
Disinfect.

　　05.Kindergarten institutions, schools and other key places should strengthen morning and afternoon inspection, absenteeism monitoring, etc., as soon as possible to find the epidemic situation, take timely measures to reduce the risk of outbreak.

　　How can medical institutions prevent hospital feeling?

　　01.In the epidemic season of human adenovirus, medical institutions should strengthen the control of nosocomial infection to avoid cross-infection in hospitals.

　　02.Medical institutions at all levels should strengthen pre-inspection and triage, set up special consultation rooms to receive fever cases, and increase the frequency of cleaning and disinfection.

　　03.The hospitalized cases of human adenovirus infection should be treated in isolation, and the medical instruments, secretions, medical waste and ward environment used by infected people should be disinfected in time.

　　04.Medical staff carry out standard prevention, droplet isolation and contact transmission measures when diagnosing, treating and caring for people infected with adenovirus.

Text | Zinc Scale Meng Huiyuan

Editor | Li Jinlin

Due to the sudden explosion of the content of the first live broadcast of Singer 2024, in order to get the first-hand news, some "fun people" borrowed from relatives and friends to get a membership account, some searched all kinds of free broadcast channels, and some paid a huge annual subscription fee for sneak peek …

In the splash caused by Mango Taiwan, various members of the video platform "routines" are presented to consumers again: "You are a VIP—SVIP—-full-screen member, why don’t you have a SVIP again, forcing me to watch pirated apps?" "VIP can’t upgrade SVIP, full-screen has no SVIP rights, and SVIP can’t be used on TV." "Svip doesn’t have a coupon for 28 yuan for one month, so what is my membership with one year left?

According to the zinc scale, not only the video members of "Mango Taiwan" are criticized by users, but also there are "VVIP problems" including fitness, making friends, audio and other apps. Even the office software WPS has recently attracted a lot of attention because of the "doll-style" charging, which can not help but make people sigh. "The leek is not as fast as the’ routine’ of membership charging."

The program is on fire, but the membership rights are full of routines.

I recall the last time I watched the variety show "I am a singer", when Yue Lin was still in college. Yue Lin still remembers what a novel viewing experience the TV set in the dormitory was less than 20 inches at that time. "You don’t know how shocked everyone was when G.E.M. sang" Bubble ".As soon as this’ unknown’ singer opened his mouth, the sisters in the whole dormitory were quiet."

And once again pay attention to this program, Yue Lin is already a senior worker of an Internet company. Yue Lin’s mind was constantly filled with all kinds of tricks on the Internet when she brushed the relevant information on the short video platform, from "Fifty-year-old Taishouguo" to "Adventures of Eiko" to "Singer 2024", which made Lei Jun win the first place in the UC users’ list, all of which made her regain her interest in the program.

After brushing a lot of CUT videos and thinking that she had finished the homework of the first live broadcast, Yue Lin turned on the projector in her small rental house on Friday night, ready to watch the much-anticipated "World War II" in an immersive way, but what she didn’t expect was that the first step of watching the program stumped her. "You have to be a full-screen member to watch the full version, but my account only has VIP."

Because she usually shares her account with her family, Yue Lin has almost never paid attention to the charging of related services before. "Besides, I seldom watch TV dramas on video websites, and most of them are short videos and free videos in bilibili.". Lin Yue only knew when she asked, the current video VIP service is so crazy. "What a breakup can watch, what a TV can watch, and what a screen can watch is all-round money. Then I might as well wait to watch those free CUT and live videos. Anyway, this time "Singer 2024" is not out of the circle because of how beautiful the song stage itself is. "

In fact, in order to watch the follow-up, netizens collectively dispatched and found many channels for free live broadcast resources. In Little Red Book, some bloggers posted strategies, such as "You can see if the points on the apps operated by various communication companies are enough to redeem Mango VIP", "Central Video APP and Learning Power APP can watch Hunan Satellite TV live broadcast for free" and "Anyone who doesn’t have Mango members can give me YouTube, with music single exclusive version and live version (with advertisements) free of charge" and so on.

And all this, it is difficult to separate it from the changes in the membership rights of Mango TV. Previously, with the launch of Mango TV’s SVIP service, there were many complaints from the voice of users: "Why do you still have to open SVIP?" "Is your full-screen member not worthy to be SVIP?" "My full-screen members can’t watch SVIP, and now one more function than ordinary VIP is TV playing, which is still the most expensive" …

It is worth noting that some users who want to go to the scene to "eat melons" found that the registration interface of the movie-watching activities of Singer 2024 also graded the members: the offline interactive rights and interests of Mango TV members include "register immediately (V1+)" and "SVIP registration", and stated that the latter is "more likely". In this regard, some netizens have commented, "Of course, we must find ways to make money. This kind of heat is not something you want."

The coverage of "VVIP" is wider than expected.

In fact, just recently, the well-known office software WPS also caused a lot of users’ dissatisfaction because of the "doll-style" charging problem.

According to China Voice "News Horizon" of China Central Radio and Television General Station, members, svip, svip Pro, AI members, big members … Many netizens reported that WPS, the Jinshan office software, had some problems such as arbitrarily modifying the membership level and "doll-like" fees, and some users said that the WPS membership structure was complex, and its members’ "routines" were suspected of infringing consumers’ right to know and choose.

Zinc Scale understands that the cause of this incident is the AI function launched by WPS, which limits the use of this function by the svip Pro that I purchased before. If I want to continue to use this new function, I must pay separately to become an AI member or a big member.

In response to the user’s question that "it is necessary to charge separately for launching a function", the relevant person in charge of WPS said: "It is a kind of welfare for member users to use AI function before, and now the welfare period has arrived. In March 2024, WPS AI began to be commercialized, with a relatively large investment. As a brand-new membership service, WPAI members are still in the gray scale test and belong to the paid upgrade option. Users can choose by themselves. If they choose not to upgrade, the original membership rights will not be affected. "

In addition, the market is full of more services that consumers have identified as "doll-style" charges. After searching for black cat complaints, zinc scale found that there are "VVIP problems" in many industry categories, such as fitness, making friends and audio.

For example, a consumer who complained about the dating APP "Love of Ivy League" said, "After opening a member, you have to rush gold coins again to send a small note, and members can only send one a day"; A user who complained about the fitness APP "Tough Guy Fitness" wrote, "I originally wanted to buy a personal customization plan. As a result, I had to pay 168 yuan before logging in. I also marked 7 yuan every month, and it was a very small month in 168/24. I thought that this was personal customization. After I paid it, I found that it was a member’s money, and I had to pay for personal customization." Another consumer who complained about the audio APP "Himalaya" said, "In the past, members could listen to it, but now they have to pay separately for members and children members, so they can’t be universal" …

After combing, consumers’ dissatisfaction with the "doll-style" charging model is mainly concentrated in the following four aspects:

One is that the charging system is too complicated. Some softwares provide a wide range of membership types with different functions and validity periods, which makes it difficult for consumers to understand and choose the membership service that suits them. This complexity increases the difficulty of consumers’ decision-making, and sometimes they even make wrong consumption decisions because they don’t know the specific service content.

Secondly, the functions are duplicated and crossed. There are overlapping functions between different levels of membership services, which makes it difficult for consumers to judge which member is most suitable for them, and may also lead to waste of resources;

Third, there will be additional costs. When consumers want to get a specific function, the platform may ask them to pay extra fees, which is regarded as a "doll" charging model, which makes consumers feel cheated;

The fourth is the change of membership level and rights and interests. Some platform parties may change the membership level and rights at will, especially cancel the promised functions and ask consumers to pay again, which undermines consumers’ trust in the platform.

To put it more bluntly, what makes consumers dissatisfied is not the membership service purchased for the convenience of using software functions, but the fact that they don’t want to be bypassed by all kinds of fancy and endless membership types and functions, and spend more money.

Clear rules, lightning protection consumption "trap" from the source

With the WPS "doll-style" charging incident being exposed in a large number during this period, rectifying similar consumption "traps" has also attracted widespread attention and attention inside and outside the industry.

Chen Yinjiang, Deputy Secretary-General of china law society Consumer Protection Law Research Association, said: "Once consumers buy, they can’t arbitrarily change the membership fees, reduce the service quality or reduce the service items. I think these behaviors are all breach of contract. It should really attract the attention of relevant enterprises. We must remind consumers of some information in the charging standards that is of great interest to consumers in a significant way, so that consumers can fully know the content and charging standards of membership services and protect consumers’ right to know and choose. "

In fact, there are many legal systems in China that provide protection for consumers’ right to fair trade and independent choice. For example, according to the Consumer Protection Law, operators "may not use standard terms and use technical means to force transactions". The price law clearly points out that operators "shall not use false or misleading price means to trick consumers or other operators into trading with them".

It is noteworthy that the State Administration of Radio and Television recently announced the complaint channels for controlling the charging and complicated operation of TV "Taowa". That is to say, the State Administration of Radio and Television has carried out special rectification, in order to standardize the "pay TV" system and strengthen the regulatory review according to law for the legal compliance of opening members and collecting fees.

The announcement mentioned that "with the strong support of the broad masses of the people and relevant departments, the State Administration of Radio and Television has actively solved the problems of’ watching TV is difficult and annoying’ and has made progress in stages. In order to better listen to the opinions and suggestions of the people, and further consolidate and improve the results of the work of managing TV’ Taowa’ fees and complicated operations, the State Administration of Radio and Television announced the complaint channels for users of’ double governance’. "

Of course, the "VVIP problem" not only depends on the strong supervision of laws and regulations, but also belongs to the platform itself that provides member charging services. Although the "doll-style" charging can bring a lot of benefits to the platform in the short term, "harvesting" consumers in this way is more likely to damage the reputation and credibility of the platform in the long run, and will also reduce the trust and satisfaction of users, which will eventually lead consumers to vote with their feet and choose to abandon. For the platform side, it should take action to balance short-term interests and long-term development.

As far as the result is concerned, although the platform party has the right to set its own price, what they should at least do is to ensure that all charging items are open and transparent, and consumers can clearly know which services they are paying for; Ensure that the services provided match the fees charged, and avoid overcharging or hidden fees; Provide users with detailed information about services to help them understand the value and necessity of various services; Set reasonable charging standards to avoid frequent changes, so as to avoid confusion or dissatisfaction among consumers; Actively listen to users’ opinions and suggestions, and adjust the charging strategy in time to meet users’ needs.

After all, only by delineating the boundaries of services first can the charges become fairer and more transparent.

　　On the evening of April 25th, a number of listed companies in Shanghai and Shenzhen issued announcements for investors’ reference:

　　Major events > > >

　　Universal Scientific Industrial Co.，Ltd.: Invested 60 million US dollars in the Mexican factory of its subsidiary for the construction of new factory projects.

　　() It was announced in the evening that according to the development plan of the wholly-owned subsidiary Universal Scientific Industrial de Mé xico S.A.de C.V. (hereinafter referred to as "Mexico Factory") and the customer’s demand, the company plans to build a second factory in Tonala, near the Mexican factory. In 2022, the Mexican factory completed the land purchase of the new factory and signed a construction contract. The total investment of the new factory is 67.498 million US dollars. The company plans to raise 60 million US dollars (equivalent to 412 million yuan) to increase the capital of the Mexican factory through its wholly-owned subsidiary Huanhong Electronics Co., Ltd.. This capital increase for the new factory project in Mexico will help to take advantage of Mexico’s geographical advantages, increase production capacity to meet the needs of North American customers, improve the operation scale and production efficiency of the Mexican factory, enhance its profitability and market competitiveness, and consolidate and enhance its position in the industry. At the same time, the company disclosed a quarterly report, and achieved operating income of 12.998 billion yuan in the first quarter, down 6.85% year-on-year; The net profit was 277 million yuan, a year-on-year decrease of 36.79%; The basic earnings per share is 0.13 yuan.

　　Xinhuadu: It is estimated that the total amount of daily related transactions with Alibaba Group in 2023 will not exceed 828 million yuan.

　　() It was announced in the evening that the total amount of daily related party transactions between the company and Alibaba Group in 2023 will not exceed 828 million yuan, and the total amount of daily related party transactions between the company and Alibaba Group in January-April 2024 will not exceed 330 million yuan.

　　Shaanxi Energy: It is planned to invest 500 million yuan to establish an integrated joint venture company with Yuneng Group.

　　() Announced in the evening, the company plans to cooperate with Yuneng Group to set up an integrated joint venture company to plan, construct and operate the supporting power supply project of Shaanxi Power Transmission and Henan Power Transmission Project in an integrated way of scenery, fire and storage, and to start the preliminary work of Zhao Shi Pan Power Plant Phase II (2×1000MW) project and Hengshan Power Plant Phase II (2×1000MW) project in advance. The registered capital of the joint venture company is 1 billion yuan, and the company has subscribed to contribute 500 million yuan, holding 50% of the shares.

　　Century Tianhong: At present, the company does not have the related technology of artificial intelligence big model.

　　() Announced the change, the company does not have the technology related to artificial intelligence big model for the time being, and has not carried out the training of artificial intelligence bottom big model at present, and has not generated relevant income.

　　China Pharmaceutical Co., Ltd.: Doxycycline hydrochloride for drug injection of its subsidiary passed the consistency evaluation of generic drugs.

　　() It was announced in the evening that its subsidiary, Hainan General Kangli Pharmaceutical Co., Ltd., received a Notice of Approval for Supplementary Application of Doxycycline Hydrochloride for Injection approved and issued by National Medical Products Administration, and the drug passed the consistency evaluation of generic drug quality and efficacy. Doxycycline hydrochloride for injection is a tetracycline antibiotic, which is suitable for infections caused by various microorganisms, gram-negative bacteria and gram-positive bacteria. According to the third-party database PDB, the sales of this product in domestic sample hospitals in 2022 was about 11.87 million yuan, and the sales of Kangli Pharmaceutical in 2022 was about 2.46 million yuan (unaudited).

　　China Kechuan: At present, it has not invested in generating artificial intelligence related business.

　　() Disclosure of serious abnormal fluctuations in stock trading The announcement stated that the company has not invested in the business related to generative artificial intelligence at present. The company has not found other mainstream media reports about our company that may have a significant impact on our stock trading price.

　　Performance > > >

　　Kweichow Moutai: The net profit in the first quarter was 20.794 billion yuan, a year-on-year increase of 20.59%.

　　() Announcement, the net profit in the first quarter was 20.794 billion yuan, a year-on-year increase of 20.59%.

　　Yiling Pharmaceutical: The net profit in the first quarter increased by 148.29% year-on-year.

　　() Announcement, the net profit in the first quarter of 2023 was 1.203 billion yuan, a year-on-year increase of 148.29%; In 2022, the net profit was 2.36 billion yuan, up 75.75% year-on-year, and it is planned to send 10 schools to 5 yuan.

　　Zhongke Shuguang: Net profit in the first quarter increased by 19.92% year-on-year

　　() Announcement, the operating income in the first quarter was 2.298 billion yuan, a year-on-year increase of 5.39%; The net profit was 131 million yuan, a year-on-year increase of 19.92%; The basic earnings per share is 0.09 yuan.

　　Renhe Pharmaceutical: In 2022, the net profit decreased by 13.62% year-on-year, and it is planned to send 10 2 yuan.

　　() The annual report was disclosed in the evening, and the operating income in 2022 was 5.153 billion yuan, a year-on-year increase of 4.41%; The net profit was 574 million yuan, down 13.62% year-on-year; The basic earnings per share is 0.41 yuan; The company plans to distribute a cash bonus of 2 yuan (including tax) for every 10 shares.

　　Tianlong shares: the net profit in 2022 increased by 25.4% year-on-year.

　　() The annual report was disclosed in the evening, and the operating income in 2022 was 1.254 billion yuan, a year-on-year increase of 5.87%; The net profit was 123 million yuan, a year-on-year increase of 25.4%; The basic earnings per share is 0.62 yuan; The company plans to distribute a dividend of 1.3 yuan (including tax) for every 10 shares. At the same time, the company announced that Zhejiang Antai Holding Group Co., Ltd., which holds 48.35% of the shares, and Zhang Yihua, which holds 10.17% of the shares, intend to reduce the shares of the company by no more than 3,977,700 shares and 7,955,400 shares respectively, that is, no more than 2% and 4% of the company’s current total share capital respectively.

　　Xinhuanet: In 2022, the net profit increased by 15.03% year-on-year, and it is planned to send 10 yuan to 1.87 yuan.

　　() The annual report was disclosed in the evening, and the operating income in 2022 was 1.941 billion yuan, a year-on-year increase of 12.56%; The net profit was 242 million yuan, a year-on-year increase of 15.03%; The basic earnings per share is 0.47 yuan; The company plans to distribute a cash dividend of 1.87 yuan (including tax) for every 10 shares.

　　YTO Express: In 2022, the net profit increased by 86.35% year-on-year, and it is planned to send 10 2.5 yuan.

　　() The annual report was disclosed in the evening, and the operating income in 2022 was 53.539 billion yuan, up by 18.57% year-on-year; The net profit was 3.92 billion yuan, up 86.35% year-on-year; The basic earnings per share is 1.14 yuan; The company plans to pay a dividend of 2.5 yuan (including tax) for every 10 shares. At the same time, the company disclosed a quarterly report, and achieved operating income of 12.914 billion yuan in the first quarter, up 9.19% year-on-year; The net profit was 906 million yuan, a year-on-year increase of 4.08%; The basic earnings per share is 0.26 yuan. The increase in net profit during the reporting period was mainly due to the increase in express delivery business.

　　Rongjie Health: The net profit in the first quarter was 11.1895 million yuan, up 116.73% year-on-year.

　　() A quarterly report was disclosed in the evening, and the operating income in the first quarter was 158 million yuan, a year-on-year increase of 28.43%; The net profit was 11.1895 million yuan, a year-on-year increase of 116.73%; The basic earnings per share is 0.01 yuan.

　　Digital authentication: the net profit in the first quarter was 3,162,300 yuan, up 51.21% year-on-year.

　　() A quarterly report was disclosed in the evening, and the operating income in the first quarter was 165 million yuan, a year-on-year increase of 16.12%; The net profit was 3,162,300 yuan, a year-on-year increase of 51.21%; The basic earnings per share is 0.01 yuan.

　　Xinyuanwei: Net profit in the first quarter increased by 103.55% year-on-year.

　　Xinyuanwei disclosed a quarterly report in the evening, and achieved an operating income of 288 million yuan in the first quarter, a year-on-year increase of 56.89%; The net profit was 65,977,400 yuan, a year-on-year increase of 103.55%; The basic earnings per share is 0.71 yuan. During the reporting period, the prosperity of the semiconductor equipment industry continued, and the company’s revenue scale continued to grow; The company’s sales revenue increased and the tax refund for embedded software products increased.

　　Degut: The net profit in the first quarter was 20,421,100 yuan, up 278.03% year-on-year.

　　() A quarterly report was disclosed in the evening, and the operating income in the first quarter was 91,451,500 yuan, a year-on-year increase of 74.73%; The net profit was 20,421,100 yuan, a year-on-year increase of 278.03%; The basic earnings per share is 0.14 yuan.

　　Paineng Technology: The net profit in the first quarter was 462 million yuan, up 355.86% year-on-year.

　　Paineng Technology disclosed a quarterly report in the evening, and realized an operating income of 1.841 billion yuan in the first quarter, a year-on-year increase of 126.07%; The net profit was 462 million yuan, a year-on-year increase of 355.86%; The basic earnings per share is 2.74 yuan. During the reporting period, the sales volume of the company’s products increased significantly compared with the same period of last year; At the same time, the increase in sales price and the optimization of product structure have brought about a substantial increase in operating income.

　　CNOOC Development: Net profit in the first quarter increased by 37.25% year-on-year.

　　() A quarterly report was disclosed in the evening, and the operating income in the first quarter was 9.538 billion yuan, a year-on-year increase of 16.37%; The net profit was 413 million yuan, a year-on-year increase of 37.25%; The basic earnings per share is 0.04 yuan.

　　Consistent with national medicine: the net profit in the first quarter was 362 million yuan, up 43.53% year-on-year.

　　() A quarterly report was disclosed in the evening, and the operating income in the first quarter was 18.687 billion yuan, up 8.96% year-on-year; The net profit was 362 million yuan, a year-on-year increase of 43.53%; The basic earnings per share is 0.85 yuan. In this period, the sales scale will be expanded, and the business structure will be optimized to achieve an increase in gross profit margin and drive profit growth.

　　Wind language building: the net profit in the first quarter was 44,116,900 yuan, up 379.49% year-on-year.

　　() A quarterly report was disclosed in the evening, and the operating income in the first quarter was 422 million yuan, a year-on-year increase of 74.78%; The net profit was 44,116,900 yuan, a year-on-year increase of 379.49%; The basic earnings per share is 0.07 yuan. The increase in net profit was mainly due to the increase in completed projects in this period.

　　North Beijing: The net profit in the first quarter was 61.2916 million yuan, up 152.59% year-on-year.

　　() Revealing a quarterly report in the evening, achieving an operating income of 1 billion yuan in the first quarter, a year-on-year increase of 20.05%; The net profit was 61,291,600 yuan, a year-on-year increase of 152.59%; The basic earnings per share is 0.19 yuan. This year, the business has fully returned to normal and the company’s business scale has continued to grow.

　　Sinopharm Hyundai: Net profit in the first quarter increased by 130.87% year-on-year.

　　() A quarterly report was disclosed in the evening, and the operating income in the first quarter was 3.417 billion yuan, a year-on-year increase of 5.33%; The net profit was 179 million yuan, a year-on-year increase of 130.87%; The basic earnings per share is 0.15 yuan. During the reporting period, the increase in sales of some key APIs and preparation products led to a year-on-year increase in revenue of 5.33%; The company actively complied with the implementation of various medical reform policies, continuously optimized the marketing model, actively promoted quality improvement and efficiency improvement, and reasonably controlled various costs and expenses. The three expense rates decreased by 5.45 percentage points year on year.

　　Seven wolves: the net profit in the first quarter was 88.9743 million yuan, up 96.63% year-on-year.

　　() A quarterly report was disclosed in the evening, and the operating income in the first quarter was 909 million yuan, a year-on-year increase of 2.75%; The net profit was 88.9743 million yuan, a year-on-year increase of 96.63%; The basic earnings per share is 0.13 yuan.

　　Shuanghui development: the net profit in the first quarter was 1.488 billion yuan, up 1.9% year-on-year.

　　() A quarterly report was disclosed in the evening, and the operating income in the first quarter was 15.666 billion yuan, a year-on-year increase of 13.83%; The net profit was 1.488 billion yuan, a year-on-year increase of 1.90%; The basic earnings per share is 0.43 yuan.

　　Aimeike: The net profit in the first quarter was 414 million yuan, up 51.17% year-on-year.

　　() A quarterly report was disclosed in the evening, and the operating income in the first quarter was 630 million yuan, a year-on-year increase of 46.30%; The net profit was 414 million yuan, a year-on-year increase of 51.17%; The basic earnings per share is 1.91 yuan.

　　Yiwei lithium energy: the net profit in the first quarter was 1.14 billion yuan, up 118.68% year-on-year.

　　() A quarterly report was disclosed in the evening, and the operating income in the first quarter was 11.186 billion yuan, a year-on-year increase of 66.11%; The net profit was 1.14 billion yuan, a year-on-year increase of 118.68%; The basic earnings per share is 0.56 yuan. On the same day, the company announced that it plans to use its own funds of no more than US$ 228 million to increase the capital of its subsidiary Yiwei Asia Co., Ltd. for Yiwei Asia’s capital contribution to its joint venture company Hua Fei Nickel Cobalt (Indonesia) Co., Ltd. in accordance with the Joint Venture Agreement of Indonesia Huayu Nickel Cobalt Laterite Nickel Mine Wet Smelting Project.

　　Shanghai Electric: The net profit in the first quarter was 367 million yuan, up 2,802.32% year on year.

　　() A quarterly report was disclosed in the evening, and the net profit in the first quarter was 367 million yuan, a year-on-year increase of 2802.32%; The basic earnings per share is 0.02 yuan. During the reporting period, by strengthening cost control, the gross profit margin of some subordinate enterprises increased compared with the same period of last year; At the same time, benefiting from the economic recovery, the investment income and fair value change income in this period increased compared with the same period of last year.

　　Huada Gene: The net profit in the first quarter was 41.3488 million yuan, down 87.49% year-on-year.

　　() A quarterly report was disclosed in the evening, and the operating income in the first quarter was 954 million yuan, down 33.31% year-on-year; The net profit was 41.3488 million yuan, down 87.49% year-on-year; The basic earnings per share is 0.09 yuan. During the reporting period, the net profit decreased year-on-year, mainly due to the end of the global public health incident and the fading of the surge in market demand for related businesses at home and abroad. At the same time, after the contraction of unconventional business, the related cost adjustment will take a certain period, and the company will continue to strengthen internal lean management, optimize the organizational structure, and reduce marketing expenses.

　　Increase or decrease holding > > >

　　Xin Pengwei: The big fund plans to reduce its holdings by no more than 2%.

　　Xinpengwei announced that the National Integrated Circuit Industry Investment Fund Co., Ltd. intends to reduce its holdings by no more than 2%.

　　Advanced Datacom: Shareholder Han Yanying intends to reduce 1.49% of the company’s shares.

　　() It was announced in the evening that Han Yanying, a shareholder holding 1.49% of the shares, plans to reduce his holding of 4,596,400 shares of the Company (accounting for 1.49% of the total share capital of the Company).

　　Zhibang Home Furnishing: Anhui Jinzhi Enterprise Management Co., Ltd. plans to reduce its shareholding by no more than 1%.

　　() It was announced in the evening that Anhui Jinzhi Enterprise Management Co., Ltd., a shareholder holding 2.57% of the shares, intends to reduce the company’s shares by centralized bidding or block trading, with a total of no more than 3,118,200 shares, accounting for 1% of the total share capital.

　　Sign a big bill > > >

　　Otway: Obtained the bid-winning notice of Longji Green Energy Component Project.

　　Aotewei announced in the evening that the company has obtained the bid-winning notice of "() Technology Co., Ltd. Component Project", with a total bid-winning amount of about 310 million yuan (the specific amount is subject to the officially signed contract). The impact of the winning project on the performance in 2023 is uncertain, which will have a positive impact on the company’s operating performance in 2024.

　　Xiangdian shares: jointly won the bid of 209 million yuan.

　　() Announced in the evening, the company and () Nanjing Control System Co., Ltd. became the winning bidders for the procurement project of synchronous motors, frequency conversion devices and ancillary equipment of water source pumping stations of Yunnan Central Water Diversion Project, with the winning bid amount of 209 million yuan, and the planned delivery date is from the third quarter of 2023 to the second quarter of 2025.

　　Author: He Junming and Sun Huayu (both are special researchers of Socialism with Chinese characteristics Thought Research Center, the supreme leader of Fujian Province, and professors of Marxism College of Xiamen University of Technology).

　　When presiding over the sixth collective study in the Political Bureau of the Communist Party of China (CPC) Central Committee, General Secretary of the Supreme Leader emphasized that "we should pay attention to drawing theoretical innovation wisdom from the creation of the masses". If a society wants to be prosperous and full of vigor and vitality, it must constantly carry out theoretical innovation. People’s nature is the essential attribute of Marxism. The Party’s theory comes from the people, for the people and for the benefit of the people. The people’s creative practice is an inexhaustible source of theoretical innovation. The important exposition of the Supreme Leader General Secretary adheres to the Marxist historical materialism and the standpoint of people first, which clarifies the source of the party’s theoretical innovation and provides a fundamental follow-up for constantly writing a new chapter in the modernization of Marxism in China.

　　The people are the creators of history.

　　Marx and Engels systematically thought about the relationship between man and history, holding that the primary premise of human history is "the existence of living individuals", and pointed out that history is the history of living people in material form, not the history of spirit or will. Social existence determines social consciousness and mode of production determines social development, which is the basic viewpoint of Marxist historical materialism. Material production activities are the basic conditions of all history, and all social life is practical in essence. Marx clearly pointed out in the Manuscript of Economics and Philosophy in 1844 that history "is nothing more than a process in which people are born through human labor, and it is a process in which nature generates for people". Man creates history through his own practical activities, and social history is composed of his practical activities, and man is the real subject of social history.

　　The people are the creators of material wealth and spiritual wealth. Marxist historical materialism holds that people’s practical activities not only create an objective material world, but also create a rich spiritual world. The people are the creators of material wealth. Material production is the premise of all history. Without certain material production, there can be no human history. The material materials needed for human survival and development are produced by the broad masses of the people. As the main body of material production activities, the people constantly accumulate production experience in practice, innovate and create production technologies, and promote the development of productive forces and the growth of social material wealth. The people are also creators of spiritual wealth. Social existence determines social consciousness, which is a reflection of social existence. The production practice of the people provides a material basis for the creation of spiritual wealth, and all spiritual wealth is rooted in the practical activities of the people.

　　General Secretary of the Supreme Leader pointed out: "The people are the driving force to create history, and we communist party people should never forget this most basic truth of historical materialism." Productivity is the fundamental driving force for the development of human society. The contradictory movement between productivity and production relations promotes the continuous development of human society, and the people are the most active factors for the transformation of productivity. The people’s subjective practical activities constitute the foundation of social life, and all social changes are based on this foundation. While creating material wealth and spiritual wealth, the people also create and transform social relations of production. Any social change cannot be separated from the people’s active participation and the people’s enthusiasm and initiative. Marx and Engels pointed out that "historical activities are the activities of the masses, and with the deepening of historical activities, it will certainly expand the ranks of the masses." Although heroes also play an important role in historical development and change, social change ultimately depends on the will, wishes and interests of the broad masses of the people. From the perspective of historical materialism, only the people are the real creators of history and the fundamental driving force for social change and social reform and development.

　　2. People’s creative practice is an inexhaustible source of theoretical innovation.

　　Great times need great theories. The Central Committee of the Communist Party of China’s Resolution on the Great Achievements and Historical Experience of the Party’s Centennial Struggle takes "persisting in theoretical innovation" as one of the historical experiences of the Communist Party of China (CPC)’s Centennial Struggle, and points out: "As long as we are brave enough to combine new practices and constantly promote theoretical innovation and be good at guiding new practices with new theories, we will certainly be able to show Marxism a stronger and more convincing truth force on the land of China." The reason why our party can make great achievements in various historical periods lies in mastering Marxist scientific theory and constantly promoting theoretical innovation in combination with new realities. We should constantly deepen our understanding of the regularity of the party’s theoretical innovation and achieve more fruitful theoretical innovation results in the new era and new journey.

　　Marxist historical materialism points out that theory is a rational social consciousness, and theoretical innovation is the need of the unity of social existence and social consciousness, which cannot be divorced from the objective law that social existence determines social consciousness and social consciousness reacts on social existence. On the basis of material production and spiritual production, people’s understanding of truth is refined and summed up in the cycle from sensibility to rationality to practice. Theoretical innovation must be based on social practice, and the main body of practice is the people. Marxism defines the people’s dominant position in social production practice and points out the "creative" nature of the people in the process of complex social practice. Marxism is a theory that stands for the people and speaks for them. It was founded to change people’s destiny and enriched and developed in people’s practice of seeking liberation. the Communist Party of China (CPC) is a political party guided by Marxism. To promote the party’s theoretical innovation, it must be closely combined with people’s creative practice, which is an inexhaustible source of Marxist theoretical innovation.

　　Looking back on the history of the Party’s struggle for a hundred years, we can see that the reason why our Party has made great achievements in various historical periods of revolution, construction and reform, and has been able to lead the people to accomplish arduous tasks that other political forces in China can’t, lies in mastering Marxist scientific theory and constantly promoting theoretical innovation in light of new realities. He has made great theoretical achievements such as Mao Zedong Thought, Deng Xiaoping Theory, Theory of Three Represents, Scientific Outlook on Development and Socialism with Chinese characteristics Thought of the Supreme Leader in the New Era, and has always adhered to emancipating the mind, seeking truth from facts, advancing with the times, seeking truth and being pragmatic, which has made Marxism glow with great vitality in China and enabled the Party to master a powerful force of truth. The party’s theoretical innovation results all come from people’s wisdom, people’s exploration and people’s creation. Adhering to the people’s supremacy is a profound summary of the Communist Party of China (CPC)’s valuable experience in the past 100 years and an unswerving pursuit of value, which is an important embodiment of Marxist people’s view. History has created the Communist Party of China (CPC) in the people’s exploration and struggle, and the Communist Party of China (CPC) led the people to create new historical glory. During the period of new-democratic revolution, socialist revolution and construction, the Communist Party of China (CPC) people, with Comrade Mao Zedong as the main representative, combined the basic principles of Marxism with China’s concrete reality, insisted on integrating theory with practice and keeping close contact with the masses, and with the strong support and sincere support of the broad masses of the people, absorbed the wisdom of the masses and relied on the strength of the people, and founded Mao Zedong Thought through hard exploration. Comrade Mao Zedong pointed out, "As long as we rely on the people,Firmly believe that the creativity of the people is endless, so trust the people and become one with them, and then any difficulties can be overcome. " In the new era of reform, opening up and socialist modernization, the Communist Party of China (CPC) people continue to rely on the creative practice of the people and lead the cause development with theoretical innovation. At the end of 1970s, the practice of "all-in-one contract" from Xiaogang Village, Fengyang, Anhui Province directly started the rural reform in China. The party’s major theoretical innovations all come from the people’s creative practice, which shows the people’s creative wisdom. Since the 18th National Congress of the Communist Party of China, the people of the Communist Party of China (CPC), with the Supreme Leader as the main representative, have persisted in combining the basic principles of Marxism with the concrete reality of China and the excellent traditional Chinese culture, scientifically answered the major issues of the times such as what kind of Socialism with Chinese characteristics and how to uphold and develop Socialism with Chinese characteristics in the new era, and created the Socialism with Chinese characteristics Thought of the Supreme Leader in the new era. The Supreme Leader’s Socialism with Chinese characteristics Thought in the New Era is contemporary China Marxism and 21st century Marxism, and it is the essence of Chinese culture and China spirit, which has achieved a new leap in the modernization of Marxism in China.

　　3. To promote the theoretical innovation of the Party, we must follow the mass line.

　　To promote the party’s theoretical innovation, we must go deep into the people and do a good job of investigation and research. The people are the creators of history and the decisive force to promote social development and change. Investigation and research is the heirloom of our party, the foundation of seeking things and the way to achieve things. Investigation is the source of insight. Since the 18th National Congress of the Communist Party of China, the CPC Central Committee with the Supreme Leader as the core has attached great importance to investigation and research. The General Secretary of the Supreme Leader took the lead in setting an example and went deep into the people. The footprints of investigation and research spread all over the country, setting a shining example for the whole party to do a good job in investigation and research. Going deep into the people to do a good job in investigation and research is the basis of continuously promoting the theoretical innovation of the Party, and it is also the practical need to keep sober and firm in solving the unique problems of the big party and answer the "six how to always". To promote the party’s theoretical innovation, we must not build a car behind closed doors, sit and talk about the road, and become a pipe dream. The General Secretary of the Supreme Leader stressed, "We should worship the people as teachers, learn from the people, put down our airs, throw ourselves down, be grounded, understand the situation, conduct in-depth investigation and study, dissect sparrows, find typical examples, truly find out the problems faced by the masses, reflect their opinions and sum up the experience created by the masses." The social practice of the masses is not only the object of our investigation and study, but also the inexhaustible source of our correct understanding. The masses not only know the actual situation best, but also contain the wisdom and strength to solve problems. Only by doing a good job of investigation and study can we continuously promote the party’s theoretical innovation.

　　Promoting the Party’s theoretical innovation must respect the people’s initiative. General Secretary of the Supreme Leader emphasized that "we should respect the people’s initiative, pay attention to summing up fresh experiences from the people’s creative practice, upgrade to rational understanding and refine new theoretical achievements". Respecting the people’s initiative is determined by the nature and purpose of our party, which embodies the Marxist historical values. The development of society is always based on giving full play to people’s subjective initiative and respecting people’s initiative. The will, desire, requirement and practice of the people reflect the trend of social development and embody the law of social development. At present, the changes of the world, times and history are unfolding in an unprecedented way. The "two overall situations" are accelerating and interacting deeply. China’s development has entered a period in which strategic opportunities and risk challenges coexist and uncertainties and unpredictable factors increase. It is even more necessary for us to persist in taking the people as the center, respect the people’s initiative, fully stimulate the creative power contained in the people, pay attention to the unity of top-level design and consultation with the people, and constantly gain new understanding from summing up the people’s creative practice.

　　Let the party’s innovative theory penetrate into the hearts of hundreds of millions of people. Report to the 20th CPC National Congress pointed out that it is necessary to "build a socialist ideology with strong cohesion and leading power" and "improve the system of arming the whole party, educating the people and guiding practice with the Party’s innovative theory". If great thoughts want generate’s great strength, they must be transformed into concrete social practice, rely on the people as the main body of social practice, and make the innovation theory consciously recognized and sincerely supported by the people, making it a powerful ideological weapon to guide the people to understand and transform the world. General Secretary of the Supreme Leader stressed, "Insist on inner-party education to guide and drive the learning of the whole society, and let the party’s innovative theory ‘ Fly into the homes of ordinary people ’ " . Socialism with Chinese characteristics Thought of the Supreme Leader in the New Era is contemporary China Marxism and 21st century Marxism, and it is the essence of Chinese culture and China spirit. We should persist in casting our souls with Socialism with Chinese characteristics Thought of the Supreme Leader in the new era, carry out in-depth study, publicity and interpretation in the whole party and society, guide the broad masses of party member, cadres and the masses to deeply understand the decisive significance of the "two establishment", strengthen the "four consciousnesses", strengthen the "four self-confidences" and achieve the "two maintenance".Consciously maintain a high degree of unity with the CPC Central Committee with the Supreme Leader as the core in ideological and political actions, and unite and struggle for building a socialist modern country in an all-round way and promoting the great rejuvenation of the Chinese nation in an all-round way. It is necessary to establish a people-centered work orientation, combine serving the people with guiding them to learn the Party’s innovative theory, grasp the theoretical concerns of the people, constantly innovate theoretical propaganda methods, and strive to make the Party’s innovative theory penetrate into the hearts of hundreds of millions of people and become a theory that is grounded, gathers people’s wisdom, conforms to the will of the people, and wins the hearts of the people, bringing together the majestic forces for building a socialist modern country and comprehensively promoting the great rejuvenation of the Chinese nation.

Mavic 3 family is a very important UAV product line in DJI, among which Mavic 3 and Mavic 3 Cine, the consumer flagship UAVs, were first unveiled, and then Mavic 3E and Mavic 3T, the small industrial UAVs, were released.

Now, the Mavic 3 product line continues to grow, and DJI Mavic 3 Classic has also come to users. This drone allows users to experience the charm brought by more cost-effective flagship aerial photography products.

Special statement: due to special reasons in Beijing, it is impossible to test the UAV. The aerial photography material of this article is provided by @ Image Dog. Thank you.After the aerial photography of drones is lifted, we will have a detailed flight experience and launch another article to share with you.

DJI Mavic 3 Classic retains a 20-megapixel 4/3-frame Hasselblad camera with the highest video specification of 5.1K50p. It also supports 4K 60P recording and 4K 120P slow-motion recording, supports Hasselblad natural color solution (HNCS), and has the best photo and video recording capability among consumer drones.

Omni-directional obstacle avoidance combined with APAS 5.0 system can make DJI Mavic 3 Classic fly more safely and let users experience the fun of aerial photography with more confidence. The image transmission scheme of DJI Mavic 3 Classic is DJI O3+, and the 1080P 60fps image transmission at the farthest distance of 15 kilometers makes it easier for us to control flight and aerial photography.

The endurance of 46 minutes allows us to fully experience flight and aerial photography.

At present, DJI Mavic 3 Classic is divided into three versions, DJI Mavic 3 Classic stand-alone version (aircraft only), the price is 9288 yuan; DJI Mavic 3 Classic(RC-N1 remote control version), the price is 9888 yuan; DJI Mavic 3 Classic(RC remote control version), the price is 10888 yuan.

Finally, there is a DJI Mavic 3 Classic flying endurance package, the price is 2999 yuan. (Compared with the standard version of Mavic 3, the official selling price of the remote control version of DJI Mavic 3 Classic RC-N1 is directly reduced by 3,000 yuan.)

Due to the problem of express transportation under the epidemic situation, this time we got the RC remote control version of DJI Mavic 3 Classic, two extra batteries and the charging housekeeper in the Changfei battery pack, and the rest of the accessories were delivered in place by express delivery, and then we will give you a supplementary picture reward.

DJI Mavic 3 Classic(RC remote control version) and packaging of battery and charging housekeeper

All the contents of DJI Mavic 3 Classic(RC Remote Control Edition)

Core parameters of DJI Mavic 3 Classic:

Image system:4/3 frame 20 megapixel CMOS　 　 　 　 　 　 　 　 　

The equivalent focal length is 24mm, the aperture range is F2.8-F11, and the closest focusing distance is 1 meter.　 　 　 　 　 　 　 　 　

Support Hasselblad Natural Color Solution (HNCS)　 　 　 　 　 　 　 　 　

Native 12.8 file dynamic range

Late space:Support 10bit D-Log.

Maximum video specification:5.1K 50P/4K 120P/FHD 200P

Encoding format:H.264/H.265, with a maximum bit rate of 200Mbps.

Obstacle avoidance ability:Omnidirectional perception obstacle avoidance

Obstacle avoidance system:APAS 5.0

Picture transmission system:DJI OcuSync 3.0+　 　 　 　 　 　 　 　 　

The image transmission distance is 15 kilometers, and the picture is 1080P 60fps.

Maximum flight time:46 minutes

Maximum hovering time:40 minutes

Maximum cruising range:30 kilometers

Maximum rising speed:1 m/s (smooth gear)　 　 　 　 　 　 　 　 　 　 　 　 　

6 m/s (normal gear)　 　 　 　 　 　 　 　 　 　 　 　 　

8 m/s (sports gear)

Maximum descent speed:1 m/s (smooth gear)　 　 　 　 　 　 　 　 　 　 　 　

6 m/s (normal gear)　 　 　 　 　 　 　 　 　 　 　 　 　

6 m/s (sports gear)

Maximum horizontal flight speed:5 m/s (smooth gear)　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　

16 m/s (ordinary gear)　 　 　 　 　 　 　 　 　 　 　 　 　 　 　 　

21 m/s (sports gear)

Maximum wind resistance speed:12 m/s

Maximum takeoff altitude:6000 meters

On-board memory:8GB (available space is about 7.2GB)

Charging:65W fast charging of GaN compatible with PD protocol, supporting camera and computer charging.

UAV take-off weight:895 grams

Size:Folding (without paddle): 221 mm x 96.3 mm x 90.3 mm (length x width x height)　 　 　 　 　

Deployment (without paddle): 347.5 mm × 283 mm × 107.7 mm (length× width× height)

Next, we will bring the evaluation and introduction of DJI Mavic 3 Classic UAV.

Appearance: consistent with Mavic 3 family design

The design language of DJI Mavic 3 Classic is consistent with the Mavic 3 family, and the biggest difference is the modeling part of the image system.

Storage protective cover of DJI Mavic 3 Classic

Storage protective cover of DJI Mavic 3 Classic

DJI Mavic 3 Classic continues Mavic 3′ s storage protective cover design, which can protect the whole camera module, obstacle avoidance vision camera and bind the blades at the same time. With this storage protective cover, we don’t have to worry about damage even if we carry DJI Mavic 3 Classic alone.

The folded state of DJI Mavic 3 Classic

The folded state of DJI Mavic 3 Classic

The expanded state of DJI Mavic 3 Classic

The expanded state of DJI Mavic 3 Classic

The expanded state of DJI Mavic 3 Classic

The expanded state of DJI Mavic 3 Classic

The expanded state of DJI Mavic 3 Classic

The expanded state of DJI Mavic 3 Classic

It can be seen that the DJI Mavic 3 Classic still adopts the folding method, and the volume control of the storage is excellent, which is also convenient for us to travel and carry. After deployment, the fuselage of DJI Mavic 3 Classic is larger than that of Air Series, but thanks to its excellent configuration and aerodynamic design, the wind resistance of DJI Mavic 3 Classic is 35% lower than that of Mavic 2 Pro. This plays a vital role in improving endurance.

4/3 format Hasselblad camera of DJI Mavic 3 Classic

It can be seen that compared with DJI Mavic 3, the biggest difference of DJI Mavic 3 Classic is the design of the lens part. DJI Mavic 3 Classic cancels the telephoto lens design, improves the cost performance, and can better satisfy users who only want to experience the Hasselblad camera experience with ultra-high quality. The image system of DJI Mavic 3 Classic adopts a CMOS sensor design with 20 megapixels and 4/3 frames, which can shoot videos with the highest specifications of 5.1K 50P and 4K 120P, with a native dynamic range of 12.8 files, and supports Hasselblad Natural Color Solution (HNCS) and 10bit D-Log.

Cooling system of DJI Mavic 3 Classic

Cooling system of DJI Mavic 3 Classic

Cooling system of DJI Mavic 3 Classic

In order to achieve a better flight and aerial photography experience, DJI Mavic 3 Classic provides a large number of heat dissipation designs. At the top of the fuselage, there are large air inlets and fins at the head and tail. In particular, the design of a large-area heat dissipation area at the bottom of the fuselage can better help the drone to cool down during operation.

Safety blade of DJI Mavic 3 Classic

DJI Mavic 3 Classic also provides safety blades, which is consistent with Mavic 3 family. The safety blade is different from the previous UAV blades, and its end is made of plastic material (orange part), that is, the end of the blade is soft. DJI came to the conclusion through experiments that, even if the safety blade passes through an object during flight, it will generally only leave a scratch, and it will not be directly split. But even so, it is not recommended that you try, which may cause a bomber or your own safety hazards.

Card slot and interface of DJI Mavic 3 Classic

The card slot and interface of DJI Mavic 3 Classic are designed above the battery with a protective cover. DJI Mavic 3 Classic adopts USB-C interface and supports TF card (Micro SD card). At the same time, the drone itself has 8GB of body memory for emergency use.

Battery and charging housekeeper of DJI Mavic 3 Classic

Fast charging charger of DJI Mavic 3 Classic

The battery of DJI Mavic 3 Classic, like Mavic 3, has the capacity of 5000mAh and 77Wh, and the voltage is 15.4V. This battery provides the longest battery life of 46 minutes and the longest cruising range of up to 30 kilometers.

In addition, DJI Mavic 3 Classic is equipped with a GaN (gallium nitride) fast charging charger with a power of 65W, which is compatible with PD protocol. Besides charging the battery of DJI Mavic 3 Classic, it can also charge laptops, cameras and other devices.

Image system: 4/3 format Hasselblad camera is very powerful.

DJI Mavic 3 Classic inherits the design of this series of 4/3 format Hasselblad lenses, with 20 million pixels, equivalent to 24mm focal length and aperture range F2.8-F11. The 4/3 frame is what we often call M4/3 frame. However, in order to meet the take-off weight and size requirements of UAV, DJI and Hasselblad jointly developed a brand-new design.

That is to say, this lightweight and compact UAV lens can not only meet the requirements of image quality and resolution of 4/3 frames, but also meet the requirements of size, weight and power consumption required by DJI Mavic 3 Classic.

4/3 frame is the largest sensor size of consumer UAV at present. As the saying goes, the bottom is the first step to crush people. Thanks to the CMOS sensor with the bottom, DJI Mavic 3 Classic can bring excellent photography and video capabilities, not only better dynamic range performance, but also better color performance and resolution.

At the same time, in the dark environment, 4/3 frame can bring better noise suppression effect and make our dark video picture more pure. The newly added night video, cruise control and other functions can better serve users, so that users who have just stepped into photography can easily complete the shooting of various styles of videos.

The video specification of DJI Mavic 3 Classic also inherits the strength of Mavic 3 family, and supports the video specification of up to 5.1K 50P, and also supports the slow-motion video capture of 4K 120P. DJI Mavic 3 Classic supports 10-bit D-log, which provides a foundation for our later stage and color matching space. Supporting Hasselblad Natural Color Solution (HNCS) can make its color effect even better.

Through the video, we can easily understand the core competitiveness brought by the 4/3 format Hasselblad camera. Video is not only rich in details, but also remarkable in color expression, which can restore natural colors very accurately, as if it were the color appearance of the real world seen by our naked eyes.

In addition, the video itself has a dynamic range of 12.8 files, which is very helpful for later repair and adjustment. That is to say, with the help of DJI Mavic 3 Classic, we can shoot professional-grade videos, which can be used for video production in professional fields.

In terms of focusing, the experience effect of DJI Mavic 3 Classic is the same as that of DJI Mavic 3, and the focusing experience is excellent, just like we are using the camera’s focusing system. For users, it is more reassuring to hand over the focus to DJI Mavic 3 Classic to complete it by themselves.

DJI Mavic 3 Classic real shot sample

DJI Mavic 3 Classic real shot sample

DJI Mavic 3 Classic real shot sample

DJI Mavic 3 Classic real shot sample

In the photo section, we can see that the performance of DJI Mavic 3 Classic is still remarkable. After all, it is a 20-megapixel M4/3 format camera that can fly to the sky. 20 million pixels is close to the mainstream pixel specifications of the current camera, so the photos brought by DJI Mavic 3 Classic have delicate analytical performance, which can present the details clearly and completely.

The 12-bit RAW format file provides a very large space for our later period, which can make the photos more professional. When you encounter good scenery, you can use this 4/3 format Hasselblad camera to take pictures.

Obstacle avoidance: You can fly safely by avoiding obstacles in all directions.

When Mavic 3 in DJI was launched, an upgrade that surprised users was its obstacle avoidance system, and DJI Mavic 3 Classic completely inherited this obstacle avoidance capability. In other words, DJI Mavic 3 Classic supports omni-directional obstacle avoidance capability, which is the best performance of consumer drones in obstacle avoidance at present.

What is omni-directional obstacle avoidance, that is, DJI Mavic 3 Classic can sense the 360-degree spherical range of the whole body. We often say that up, down, front, back, left and right can avoid obstacles in these directions.

Forward-looking obstacle avoidance vision sensor of DJI Mavic 3 Classic

Up-looking and back-looking obstacle avoidance vision sensors of DJI Mavic 3 Classic

DJI Mavic 3 Classic’s down-looking obstacle avoidance vision sensor, ToF ranging sensor and fill light.

DJI Mavic 3 Classic has designed eight vision sensors, including two fisheye cameras at the front, back and bottom, which provide a 185-degree viewing angle and can cover a wider visual area. There are also two wide-angle cameras at the top of the fuselage, and there are ToF ranging sensors and fill lights below. Together, these designs provide powerful hardware support for obstacle avoidance vision.

In terms of software, DJI Mavic 3 Classic supports APAS 5.0 obstacle avoidance system. Thanks to the improvement of system algorithm, it can help DJI Mavic 3 Classic to avoid obstacles faster, more dexterous and smarter, and ensure the UAV to fly and take aerial photos safely.

When flying, DJI Mavic 3 Classic can identify obstacles and avoid obstacles by itself, even if it only makes the plane fly forward. We can choose emergency stop or detour in the menu, and detour can also choose safe or radical, which has achieved different results. No one will take corresponding measures to avoid obstacles according to our choice.

With excellent obstacle avoidance ability, it can bring excellent intelligent following ability to users. When we are outdoors, whether we let DJI Mavic 3 Classic follow our own walking and running shooting, or follow our own riding and driving shooting, we need the powerful following ability and obstacle avoidance ability of the drone to work together.

The overall performance of DJI Mavic 3 Classic is excellent. Because its obstacle avoidance system is smarter, it will have better path planning when following, and at the same time, its recognition ability is more stable, and it can keep up and keep up well.

Return flight: advanced intelligent return flight efficiency

DJI Mavic 3 Classic also has advanced intelligent return function. In the past, the unmanned aerial vehicle (UAV) was very unwise to return home. It needed to fly to a preset altitude, then fly back to the take-off point, and then descend. If you encounter a tall obstacle in the middle, you need to continue to climb the height and then cross the obstacle, which is time-consuming and electricity-consuming. Therefore, when we experience aerial photography, we will reserve enough power for the drone for returning flight. In this way, our experience time of aerial photography and flight will be greatly reduced.

DJI Mavic 3 Classic’s return flight ability is more intelligent and fully inherits the new skills of Mavic 3 family. During the flight, the visual processing engine of DJI Mavic 3 Classic can scan the surrounding environment in real time and build a three-dimensional environmental map. In this way, when returning, the drone will find a safe and efficient path to return.

If we return in the wild, the performance of DJI Mavic 3 Classic will not be particularly outstanding. After all, there are not too many obstacles in the wild to prevent us from returning. If you are returning in a city, especially in a city with many high-rise buildings, the intelligent return performance of DJI Mavic 3 Classic can be revealed. When encountering a tall obstacle, the drone does not climb or leap, but cleverly bypasses the obstacle and continues to return, which can save a lot of return time and electricity, and let us have more time to experience flying and aerial photography.

Image transmission: the picture is clear and stable.

The evaluation product we got this time is the remote control version of DJI Mavic 3 Classic RC, which means we got the remote control version with screen. However, both the remote controller DJI RC with screen and the remote controller DJI RC-N1 without screen have the same image transmission ability. DJI Mavic 3 Classic supports DJI O3+ image transmission, and can support the image transmission distance of up to 15 kilometers, and the transmitted images reach 1080P 60fps.

DJI RC remote controller

DJI RC remote controller

With this set of graphic transmission system, the experience of our daily use of DJI Mavic 3 Classic is directly improved. The first is the improvement of the picture transmission. The picture of 1080P 60fps is not only clear but also very smooth, which allows us to better view the flight picture and control the composition and flight. Although it is impossible to reach the image transmission distance of 15 kilometers in a city with serious interference, this image transmission system is still very stable and can ensure our safe flight experience. Even if it is disconnected, the plane can return intelligently, so don’t worry too much.

Endurance: 46 minutes can be a happy aerial photography.

The endurance of DJI Mavic 3 Classic is also 46 minutes, which is consistent with the products of Mavic 3 family. The test version we get will contain a battery itself, as well as two extra batteries in the battery pack and the charging housekeeper, which will ensure that we have a long flight experience and aerial photography time. At present, the 46-minute battery life ranks second among the consumer-grade UAVs in DJI, and the first one is the 47-minute battery life of the Mini 3 Pro with long battery life.

Battery and charging housekeeper of DJI Mavic 3 Classic

In the past, the average battery life of consumer-grade UAV products in DJI was around 31 minutes. Suppose we fly for 31 minutes, excluding the take-off, composition and adjustment time, which is about 10 minutes, and excluding the return time of about 6 minutes, our actual shooting time is only 15 minutes. The battery life of DJI Mavic 3 Classic is 46 minutes, so the actual shooting time can reach 30 minutes.

Summary: cost-effective flagship consumer drone

So far, our evaluation and introduction of DJI Mavic 3 Classic has come to an end. DJI Mavic 3 Classic has the same flying ability, obstacle avoidance ability, image transmission ability, endurance and so on as the consumer flagship drone DJI Mavic 3. At the same time, it also has a Hasselblad camera with 4/3 frame, which provides professional-grade imaging ability. The only difference is the telephoto camera. Of course, DJI Mavic 3 Classic has many functions that serve users, such as time-lapse photography, focus following, master shots, etc. Because these functions are completely consistent with the performance of Mavic 3, we will not repeat the test and introduction.

DJI Mavic 3 Classic is a differentiated Mavic 3 family member. Compared with the current Mavic 2 Pro and Air 2S, DJI Mavic 3 Classic has flagship flight and aerial photography capabilities, which can be described as a comprehensive upgrade, and the intensity of the upgrade is still qualitatively improved. At the same time, it has high cost performance and can fully meet the upgrade needs of users.

At the same time, based on the functions of Mavic 3 family, DJI Mavic 3 Classic has also added functions such as cruise control and night video, which allows users to achieve more diversified creations.

If you just need to upgrade and think that the price of Mavic 3 exceeds the budget, then the price of DJI Mavic 3 Classic is your best choice. Through our actual experience, this drone is enough to meet the use and shooting needs of professional users, both in flight capability and imaging system.

In particular, video creators, aerial enthusiasts, video teams and studios can fully consider this product because it is a flagship drone with high cost performance.

In the future, more new members will join in, enriching the category of consumer-grade flagship drones, and users can choose DJI drones that are more suitable for them according to their own needs and budgets.

　　Recently, mycoplasma infection and mycoplasma pneumonia have become high-frequency words in mom circle. Three years after the epidemic in COVID-19, before the arrival of mycoplasma infection, children have experienced several rounds of infectious diseases, which are influenza, syncytial virus infection, infectious diarrhea, herpetic angina and so on. From the beginning of school in March this year to the present, "one disease per month" children account for a considerable proportion.

　　The epidemic time of mycoplasma was advanced, and it spread widely.

　　During the epidemic in COVID-19, because everyone wears masks, washes hands frequently, keeps social distance, increases ventilation and disinfects more surfaces, children’s contact with other pathogens is reduced, and the incidence of virus and bacterial infections is reduced. However, everything has two sides. The decrease of infection makes the immune stimulation of pathogens insufficient, the susceptible population increases and the group immunity decreases. After reducing the intensity and scale of group protection in many countries, the incidence of respiratory syncytial virus and other pathogens increased significantly. In this context, experts put forward the concept of immune debt during COVID-19 (the above content was quoted from the No.1 issue of journal of applied clinical pediatrics Journal of China, Volume 38, January 2023, "Immune debt and its influence during the epidemic of children in novel coronavirus").

　　To put it simply, COVID-19’s three-year-old children may get one disease at a time. The flu hit first, and now it’s mycoplasma’s turn.

　　Mycoplasma is a prokaryotic microorganism similar to bacteria but without cell wall, which is between bacteria and viruses, smaller than bacteria and larger than viruses, and is the main pathogenic microorganism of respiratory tract infection. Most common mycoplasma epidemics occur in November and December every year, and this year is advanced to August and September, which affects a wider range of people. The children’s condition is biased and the course of disease is long.

　　Mycoplasma pneumonia has typical characteristics, and children should be vigilant in the following situations.

　　1. Severe irritating dry cough: Severe cough is a prominent symptom of this disease. At the beginning, it is a dry cough, and the cough is stubborn and severe. The child can’t stop coughing and even affect the activities during the day and sleep at night. Late sputum, cough is still severe.

　　2. Fever: high fever is common. If not treated, the fever will persist. There are also people with low body temperature or even no fever, which are relatively few.

　　3. Auscultation often does not hear rales: general doctors with lung infections can hear wet rales, but most of mycoplasma pneumonia can’t hear rales. The auscultation of the lung is very inconsistent with the clinical manifestations such as severe cough and high fever, which has become one of the characteristics of this disease. Therefore, the diagnosis of mycoplasma pneumonia often needs chest radiography to assist the diagnosis.

　　4. Chest X-ray: Typical mycoplasma pneumonia often shows large shadows in the lungs.

　　5. Routine blood test: Routine blood test of mycoplasma has no characteristics, unlike typical bacterial infection, where the total number of white blood cells, neutrophils and CRP are all increased, and unlike virus infection, which is basically normal, white blood cells are often normal or high, or one of them is high.

　　6. Mycoplasma pneumoniae antibody test: Mycoplasma antibody test positive can help diagnosis, but negative can not be excluded. And mycoplasma antibodies are often not detected at the early stage of the disease, which is not helpful for early diagnosis.

　　These are the characteristics of typical mycoplasma pneumonia, but actually not all mycoplasma pneumonia show these characteristics. Clinically, some children only have a high fever and their cough is not obvious. In the clinic, I once met a child who had a fever for 5 days, accompanied by a mild cough for 2 days, and a film was also pneumonia. Some children have no obvious fever, only moderate to low fever, and even have no fever but cough is very severe, and filming is also pneumonia.

　　About mycoplasma infection, these problems should be clear.

　　Will children get pneumonia if they are infected with mycoplasma? Mycoplasma pneumonia is very difficult, okay? Will there be sequelae? Parents have too many questions to answer.

　　First of all, it should be noted that infection with mycoplasma (mycoplasma pneumoniae) does not necessarily lead to pneumonia. Mycoplasma (mycoplasma pneumoniae) can not only cause pneumonia, but also cause upper respiratory tract infection (common cold symptoms) and tracheitis.

　　Which children are susceptible to mycoplasma (mycoplasma pneumoniae) infection? Mycoplasma pneumoniae mainly infects children aged 5-9, that is, school-age children. Recently, this wave of mycoplasma infection has spread to a wider age group, and infants also have severe mycoplasma pneumonia.

　　How to treat mycoplasma pneumonia? Once mycoplasma pneumonia is diagnosed, macrolide drugs such as erythromycin and azithromycin are given for treatment. Mycoplasma infection is not sensitive to penicillins and cephalosporins.

　　Why do children still progress to pneumonia after taking azithromycin? Is it delayed? Azithromycin is a specific drug for treating mycoplasma infection. Some children took azithromycin orally in the early stage of fever, but their condition was still getting worse and more serious pneumonia appeared. Parents often don’t quite understand why they developed pneumonia after taking azithromycin at the early stage of taking their children to see a doctor. The reason for this is complicated, which may be related to the variation or drug resistance of mycoplasma. It may also be related to the child’s poor rest after illness, or to the child’s physique.

　　Mycoplasma pneumonia is very difficult, okay? Will there be sequelae? Mycoplasma pneumonia has a good prognosis after regular treatment. However, there are also serious mycoplasma pneumonia, and the effect of antibiotic treatment is not ideal, so special drugs such as hormones are needed, and some need bronchoscopy to assist diagnosis and treatment.

　　If mycoplasma pneumonia is diagnosed, the child should be treated completely according to the doctor’s requirements, and hospitalization is needed if necessary. Have a good rest during and after the treatment, and don’t take classes with illness. After the treatment, you need a rest period.

　　How to prevent mycoplasma pneumonia? When the child is at school, the class should actively open the window for ventilation; Children should carry out appropriate physical activities to increase immunity; Don’t arrange extracurricular classes and physical classes too full, but step by step, so that children can have an adaptation process; Drink plenty of water, don’t eat too much, and ensure daily defecation. Daily ventilation should be ensured in the family. If children have mycoplasma infection, isolation should be implemented as much as possible to reduce cross-infection in the family.