The mode of paying online subscription to mobile real-time stock market data analysis belongs to ________.
A. Sales model
B. Communication model
C. Advertising model
D. Information service model
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The operation type of the mobile business platform Maimaibao belongs to ________.
A. Traditional e-commerce companies
B. Mobile commerce enterprise
C. Telecom operators
D. Software companies
In the mobile commerce value chain, the infrastructure service providers provide ________.
A. Support services
B. Network operations
C. Access service
D. Content Service
The third generation mobile communication system (3G) ________.
Adopts analog and frequency division multiple access technology, voice only
B. Adopts digital technology to improve quality and confidentiality
C. Adopts CDMA technology to transmit voice, data and multimedia information
D. Adopts TD-LTE and FDD-LTE technology to quickly transmit multimedia information
The operating system used by Apple mobile phones is ________.
A. Windows Phone
B. Android
C. IOS
D. Symbian
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