The physicist has made a discovery, _______ of great importance to the progress

游客2024-10-15 9

问题 The physicist has made a discovery, _______ of great importance to the progress of science and technology.

选项 A、which I think it is
B、which I think is
C、that I think is
D、I think which

答案 B

解析非限定定语从句，关系代词在定语从句中做主语。

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