问题描述：
The Internet is a wonderful discovery,__________ of great significance to people’s lives.
A.which I think\x05\x05\x05B.which I think it is\x05C.as I think \x05\x05D.as is I think
为什么选A think后为什么没有is
A.which I think\x05\x05\x05B.which I think it is\x05C.as I think \x05\x05D.as is I think
为什么选A think后为什么没有is
问题解答：
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