What is pull technology?A.It is the Internet system affected by long uncertain response t
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What is pull technology?
A.It is the Internet system affected by long, uncertain response times.
B.It is the way of business operation driven by user demands.
C.It is the technology to send information to passive users.
D.It is a way to blend one-way television with interactive Internet.
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正确答案:B
解析:细节题。文中第9行以同位语的形式给出pull technology的定义:...it is a pull technology,driven by patterns of user demands,所以选择B。
