In short, e-commerce is__ carried out on the Internet using modern information technology（）
A. Express delivery service
B. Customer service
C. Marketing activity
D. Trading activity
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In the following descriptions of the framework of e-commerce, which one is not true（）
A. The architecture of e-commerce include: hardware platform, network platform, software platform, and business service support platform
B. The application of e-commerce includes market e-commerce, enterprise e-commerce and social e-commerce
C. Public policies, laws and credit systems are the pillars of the e-commerce framework
D. Technical standards and security are the pillars of the e-commerce framework
The basic types of B2B e-commerce do not include__（）
A. seller’s market model
B. trading market model
C. buyer’s market model
D. subscription model
Which of the following causes of e-commerce is not true（）
A. Increasing market competition
B. Development of information and communication technology
C. Development of express service industry
Development of global trade liberalization
Lequel des modes suivants ne fait pas partie du déplacement écologique（）
A. Le vélo en libre-échange
B. Le métro
C. Le bus et le trolleybus
D. Les véhicules particuliers
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