题目内容

He made another wonderful discovery, ________ of great importance to science.

[  ]
A.

which I think is

B.

which I think it is

C.

which I think it

D.

I think which is

答案:A
解析:

此题考查的是关系代词,首先认清这是个非限制性定语从句,其次,分析I think作插入语,因为of great importance to science前面缺少谓语动词,应选A项。此题意思是“他又作出了惊人的发现,我认为他的发现对科学极为重要”。


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