题目内容
(请给出正确答案)
[单选题]
_____ the Internet is of great help. I don’t think it’s a good idea to spend too much time on it.
A.If
B.While
C.Because
D.As
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A.If
B.While
C.Because
D.As
A.Internet减少了产销距离
B. Internet使中间环节增多,价格变贵
C. Internet减少了就业机会
D. Internet破坏了正常的商业运作