________ the Internet is of great help, I don’t think it’s a good idea to spend

题干

________ the Internet is of great help, I don’t think it’s a good idea to spend too much time on it.

A．While

B．As

C．Because

D．If

上一题下一题 0.94难度单项选择更新时间:2010-04-02 06:52:23

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