The physicist has made a discovery, I think is of great importance to the progre

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

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

答案 C

解析 which引导非限制性定语从句，I think为插入语。句意：物理学家有了一个发现，我认为这对科学技术的进步具有重要意义。

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AwardedtheNobelPrizeforphysicsin1918,GermanphysicistMaxPlanckis