问题
选择题
The Internet is a wonderful discovery, _____ of great significance to people's lives. [ ]
A. as is I think
B. which I think it is
C. as I think
D. which I think is
答案
答案：D
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The Internet is a wonderful discovery, _____ of great significance to people's lives. [ ]
A. as is I think
B. which I think it is
C. as I think
D. which I think is
答案：D