The author of the text from iExplore 2 discusses about ___________.
A、China’s leading role in the development of mobile tech.
B、the popular mobile apps in China and the U.S.
C、superiority of China over the U.S. in online services.
A、China’s leading role in the development of mobile tech.
B、the popular mobile apps in China and the U.S.
C、superiority of China over the U.S. in online services.