(At that time, China's mobile Internet industry was developing rapidly, and more and more related enterprises were emerging. To this end, Nielsen Online Research conducted a survey on the mobile Internet usage of Chinese Internet users. The research plan was for Internet users aged 13 to 49 in China, with a total of 1,000 valid samples. Statistics show that there are now 303 million mobile Internet users in China, an increase of 69.3 million from the end of 2009.)