2. 外语
  3. He has made another wonderful discovery, ______ of great importance to science.

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

admin2007-10-13  100
问题 He has made another wonderful discovery, ______ of great importance to science.
选项 A、which I think it is
B、of which I think it is
C、I think which is
D、which I think is
答案D
解析 本题测试的是非限制性定语从句。“I think”是插入语；“which”是引导非限制性定语从句的关联词；of importance＝important。综上所述，D为正确答案。
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