Which of the following belong to major types of e-tailers（）
A. virtual merchant
B. bricks-and- clicks
C. manufacturer-direct
D. Community providers
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The growth of social e-commerce is driven by___（）
A. social sign-on
B. network notification
C. integrated social commerce tools
D. sharing of products, services, and content on social accounts
The Reinvention period is characterized by___（）
A. local economy
B. user-generated content
C. viral marketing
D. disintermediation
Which of the following is an example of the affiliate revenue model（）
A. QQ music
B. eBay
C. JD
D. Amazon
Which of the following is not a characteristic of a perfect competitive market（）
A. Price, cost, and quality information are equally distributed
B. A nearly infinite set of suppliers compete against one another
Customers have access to all relevant information worldwide
D. It is highly regulated
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