In the early years, many people first considered the joint venture brand when buying a car, thinking that the joint venture car is of good quality and is not prone to minor problems. However, with the rise of independent brands, domestic cars are now the hottest. According to our inventory, among the top ten SUV sales in October, domestic cars occupied eight seats, and only two models were foreign brands. The details are as follows:

As can be seen from the above rankings, the first SUV sales in October was Tesla, with sales reaching 36,204 units; Toyota, which ranked tenth in sales volume, sold 20,526 vehicles in October. Except for Model Y and Flanders, which belong to overseas brands, the eight SUVs from the second to the ninth place on the list are all from domestic brands.

Among the domestic brands, BYD has the highest sales volume, with sales of 28,676 vehicles in October, followed by BYD’s DM, with sales of 26,364 vehicles in October. The highest sales volume after Song PLUS was 25,814 vehicles in October.

In addition, the models on the list include BYD Song L DM (sales of 25,198 vehicles in October), Geely (sales of 24,465 vehicles in October), BYD Song Pro DM (sales of 22,615 vehicles in October), Chery (sales of 21,625 vehicles in October) and Changan CS75 Plus (sales of 21,574 vehicles in October).

It can be found that among the eight domestic SUVs on the list, there are as many as five models with new energy power systems. Only Geely Xingyue L, Chery Tiggo 8 and Changan CS75 PLUS are traditional fuel vehicles, and the sales volume of new energy SUVs is generally higher than that of fuel vehicles, so not only domestic vehicles are becoming more and more popular, but also the recognition of new energy vehicles is gradually increasing.

In the era of rising oil prices, new energy vehicles are favored by more users because of their fast power response and excellent energy consumption performance. Among them, BYD has become the "leader" in the field of new energy vehicles. In the above list, BYD alone has listed four models, which shows that BYD’s popularity is quite high, and the brand has become the "sales champion" in the new energy vehicle market for two consecutive years.

With the continuous development of the domestic automobile industry, there will be more and more domestically produced cars with strong products in the future. At present, joint venture car companies such as Toyota, Honda and Volkswagen can only maintain their sales by cutting prices greatly, among which the starting price of the tenth place is 125,800 yuan, but the bare car price has reached about 95,000 yuan after the terminal discount. However, price reduction alone can only maintain sales for a short time. If the product strength is not improved, the future sales will be surpassed by more domestic cars.

The finless porpoise in the dolphin museum of Institute of Aquatic Sciences, Chinese Academy of Sciences. Zhang Xianfeng

Zhang Xianfeng, researcher of Institute of Aquatic Sciences, Chinese Academy of Sciences and curator of the Museum of Aquatic Biology.

Recently, the video of playing and jumping on the Yangtze River in Wuhan became popular on the Internet. For a time, people became more interested and curious about the finless porpoise known as the "smiling angel" and "Yangtze Giant Panda". How many finless porpoises are there now? Where do the finless porpoises live the most? Why do Wuhan people especially like finless porpoises? Is it alarmist to say that it will disappear in the next 15 years? What are the latest national policies and measures for the protection of finless porpoises? On the 26th, our reporter interviewed Zhang Xianfeng, a researcher at the Institute of Aquatic Sciences of Chinese Academy of Sciences and director of the Museum of Aquatic Biology.

Q: What does the finless porpoise look like? How many are there now? Where do the finless porpoises live the most in Hubei?

A: The Yangtze finless porpoise is a rare animal unique to the Yangtze River basin in China, which is only distributed in the mainstream of the middle and lower reaches of the Yangtze River and in Dongting Lake and Poyang Lake. They are lead-gray or taupe, generally about 1.3 meters long, and the longest can reach 1.9 meters, which looks like dolphins. The head is round, the posture is smooth, and the curved corners of the mouth are raised like a charming "smile", which is affectionately called "smiling angel".

At present, according to the classification of IUCN Red Book on Endangered Species, the Yangtze finless porpoise is an "extremely endangered" species. In 2017, the results of ecological scientific investigation of Yangtze finless porpoise showed that its wild population was about 1012. In Hubei Province, there are more than 80 in Swan Island National Nature Reserve of the Yangtze River and about 20 in Hewangmiao Provincial Nature Reserve of Jianli.

Q: What are the interesting habits of finless porpoises?

A: The Yangtze finless porpoise is similar to human beings. The gestation period is about 11-12 months, and the peak of littering is from May to September every year, with one litter per litter. They live by eating fish, like to move in groups, and can send out ultrasonic signals that people can hardly hear, including two types: high-frequency pulse signals and low-frequency continuous signals.

The finless porpoise is lively and very naughty. It often runs up and down in the water, and its body keeps rolling, jumping, nodding, spraying water and suddenly turning. When swimming upright, two-thirds of the body is exposed to the water, and the posture perpendicular to the water can last for several seconds. In the past, people could see finless porpoises along the Yangtze River ferry in Wuhan. They liked to follow the boat closely, ride the waves, spit and jump playfully. I think this is why Wuhan people like it very much.

Q: It is reported that the finless porpoise will disappear in the next 15 years.

A: There are only about a thousand Yangtze finless porpoises left, which seems to be a lot. In fact, after careful analysis, there are very few adults who can reproduce. At present, the Yangtze finless porpoise is an extremely endangered species. In 2013, it was listed as "extremely endangered" species in the IUCN Red Book of Endangered Species.

The reason why 15 years will disappear is that scientists use a mathematical model called "vortex model" to simulate and calculate. This push is strictly defined and assumed. If we don’t take any protective measures, the finless porpoise may disappear from us like the baiji in 15 years. If we take active and effective protective measures, this result will be delayed or even won’t appear.

Q: What has been done to protect the finless porpoise in recent years?

A: The Yangtze finless porpoise Protection Action Plan (2016-2025) drafted by the Institute of Hydrobiology of the Chinese Academy of Sciences and issued by the Ministry of Agriculture and Rural Affairs is being actively implemented. The protection situation and protection network of the Yangtze finless porpoise have been formed. Eight nature reserves of different levels have been built in the middle and lower reaches of the Yangtze River and the two great lakes. At present, the first ex-situ population of Yangtze finless porpoise in China, which is located in Tianezhou Baiji Dolphin National Nature Reserve, Hubei Province, has increased from the initial introduction of 5, and later introduced some individuals as "founders", mainly through the reproduction of these "founders", to about 80; The whole ex-situ conservation population of Yangtze finless porpoise has reached about 120, and about 10 young porpoises are born every year. The ex-situ conservation has achieved initial results. At the same time, the research on the reproduction of Yangtze finless porpoise in artificial environment has successfully propagated individuals, and accumulated rich research results and technologies, which has continuously provided important technical support for the nature protection of Yangtze finless porpoise.

Recently, the State Forestry and Grassland Bureau and the Ministry of Agriculture and Rural Affairs publicly solicited opinions on the List of National Key Protected Wild Animals (Draft for Comment). Among them, the Yangtze finless porpoise is planned to be upgraded to a national first-class protected species. In fact, as early as many years ago, we managed the Yangtze finless porpoise according to the national first-class protected species standards.

Q: How do ordinary citizens participate in the protection of finless porpoises?

A: To protect the Yangtze River and its biodiversity, Wuhan citizens can start from the small things around them, visit museums and breeding houses with rare animals, and enhance their awareness of rare animals and protection through various information channels. You can also participate in some specific and easy-to-operate biological and environmental protection activities, such as joining volunteer organizations, salvaging lake garbage, disposing of wastes, and cracking down on illegal fishing. In addition, in daily life, we should save water, travel green, do not interfere with the lives of animals, do not buy or eat protected animals, and insist on garbage sorting.

Reporter Dai Hongbing Correspondent Li Fang Yu Haitao Sun Hui

[car home Daqing Preferential Promotion Channel] has become a model that has attracted much attention in this preferential activity. At present, this model is undergoing great preferential activities in Daqing area, with the highest discount reaching 45,000, which reduces the minimum starting price to 130,800. If you are interested in Willanda, please click "Check the car price" in the quotation form to get a higher discount.

Willanda’s exterior design is fashionable and dynamic, the front face adopts family-style design style, and the air intake grille is decorated with wide chrome, which shows the luxurious atmosphere. The overall body lines are smooth, showing a strong sense of movement, and with the unique body color, Willanda is more eye-catching.

The body size of Willanda is 4665 * 1855 * 1680mm, and the wheelbase is 2690mm. The car side lines are smooth and modern. The front and rear wheel tracks of the vehicle are 1605mm and 1620mm respectively, and the front and rear tyre size are both 225/60 R18. It is equipped with fashionable wheels, which adds a lot of sportiness to the whole vehicle.

Willanda’s interior design is elegant and exquisite, with practicality and comfort as the leading factor. Its leather-wrapped steering wheel not only feels delicate, but also has the function of manual adjustment up and down and back and forth, which can meet the individual needs of different drivers. The 10.25-inch high-definition touch screen on the center console integrates the functions of multimedia entertainment, navigation and vehicle setting, which enhances the sense of science and technology and the convenience of operation. The car is equipped with USB and Type-C interfaces. There are three interfaces in the front row and two in the back row, which is convenient for passengers to charge electronic equipment. The seat is made of imitation leather. The main driver’s seat has the functions of fore-and-aft adjustment, backrest adjustment, height adjustment (4-way) and lumbar support (2-way). The assistant driver’s seat supports fore-and-aft adjustment and backrest adjustment, while the second row of seats supports backrest adjustment. The rear seats can be laid down in proportion to provide more cargo space.

Willanda is equipped with a 2.5L L4 engine with 178 horsepower, with a maximum power of 131kW and a maximum torque of 221N·m, which is matched with the E-CVT continuously variable transmission to provide a smooth and efficient driving experience.

The owner of car home thinks that the high headlight is a highlight of Willanda. He said: "The high headlight is more evenly laid than the low headlight. Before buying a car, I want to modify the laser lens lamp. This money can be saved." In addition, he also mentioned: "The front face of Willanda looks better, and the tail light feels better, but the wife likes the appearance of this car and listens to her." Finally, he added: "She liked this car at the Guangzhou Auto Show at first sight. It would be better if the back row and tailgate were all privacy glass."

(Observer News) Since the acquisition of Twitter with a total capital of US$ 44 billion on 25th, elon musk, the world’s richest man, has been attracting attention and speculation from all walks of life.

On February 28th, local time, US media CNN quoted anonymous sources as saying that Musk’s next plan for Twitter was to "verify all real people" and implement real-name registration system on Twitter. According to the report, Musk did this because his biggest dissatisfaction with the Twitter platform is that there are too many fake accounts, and some people even swindle under his name.

Report screenshot

According to CNN, the information given by this "mysterious source" is vague but specific enough.

In order to "verify all real people" and distinguish between real accounts and fake accounts, there are three main paths that Musk can operate: one is to require all users to change their nicknames to real names; Second, users can keep false nicknames, but they must upload photo identification; The third is to retrieve the identity information from the third-party platform under the authorization of the user.

According to the report, if Musk’s goal is to ensure that each account is bound to a real person with flesh and blood, then the Twitter platform will need to verify the authenticity of these accounts. One possibility is to extend Twitter’s existing authentication process. At present, if users want to get the official blue certification mark of Twitter, they must provide the official website link, official email address or government-issued identification. Musk can not ask users to provide these identities, but only ask them to use their real names.

Jillian York, director of international freedom of speech at the Electronic Frontier Foundation (hereinafter referred to as EFF), a digital rights organization, said that Musk could also explore other methods, such as binding Twitter accounts with credit cards, or relying more on verification codes to defeat fake robot accounts.

However, the verification code is not a panacea. As the artificial intelligence robot becomes more and more intelligent, it will become more and more difficult to distinguish the verification code between real dummies, and finally it will become difficult for even real people to pass the verification.

Musk

As for why Musk is obsessed with "authenticating" Twitter users, CNN reported that this is because his biggest dissatisfaction with Twitter platform is that there are too many junk accounts, especially those that engage in cryptocurrency fraud. Many of these accounts lurk in Musk’s comment area, using Musk’s fame to cheat, and even pretending to be him to seduce "unsuspecting people".

In the summer of 2020, Musk’s Twitter authentication account was attacked by a wave of hackers, which led to the unwitting spread of a bitcoin scam on the accounts of many celebrities, including former US President Barack Obama and "Kanye" Kanye Omari West.

Previously, Musk had tweeted that the cryptocurrency junk robot account was Twitter’s "most annoying problem."

Musk tweeted the fake account of the robot.

CNN said that if Musk really wants to implement real-name registration system on Twitter, the plan will have a significant impact on hundreds of millions of Twitter users. However, experts said that there are many challenges and difficulties for Musk to implement real-name registration system on Twitter, such as access and privacy.

Access means that Twitter should ensure that all people who want to use this platform can use it, but real-name registration system of Musk has raised the threshold. For example, York, head of EFF’s international freedom of speech, said that if Musk requires Twitter users’ accounts to be bound to credit cards, then those young users without credit cards or users with poor credit can’t use Twitter. York estimated that this move would "exclude millions of people from the Twitter platform".

Then there is the issue of privacy. Although many users may feel that they have nothing to hide, submitting personally identifiable information means that they have to believe that Twitter officials will not abuse their personal information. In addition, users will have new concerns, because Twitter will become the target of cyber criminal gangs who intend to steal identity information.

York said: "(Musk) He talked a lot about how to get rid of fake accounts of robots, but Twitter has been trying to do this for many years. I think he will soon realize that this is not an easy problem to solve. "

Special topic: picture channel

Special topic: A major earthquake occurred in Wenchuan, Sichuan.

　　　 On June 11th, 2008, a giant panda was enjoying delicious food in chengdu research base of giant panda, Sichuan, China. Since the May 12th Wenchuan Earthquake, the tourism industry in chengdu research base of giant panda has been greatly affected.

　　　 CCTV.com News: In this earthquake, many pandas survived in Wolong Giant Panda Nature Reserve, the hardest hit area, and only one panda was killed. On the morning of 10th, Sichuan Wolong China Conservation Giant Panda Research Center held a funeral for the giant panda killed in the earthquake. This giant panda disappeared on the day of the earthquake. On the 9th, when the rescue team was cleaning up the ruins of Wolong Giant Panda pen house, it was found buried under the debris flow and the ruins of buildings, and it had already been killed.

　　　 On June 11th, 2008, a giant panda was enjoying delicious food in chengdu research base of giant panda, Sichuan, China. Since the May 12th Wenchuan Earthquake, the tourism industry in chengdu research base of giant panda has been greatly affected.

　　Related links: