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【题目】The scientists ________most of their time _______ the research.

A. devoted; into doing B. devoted; to do

C. devoted; to doing D. devoted; for doing

【答案】C

【解析】

句意:科学家花费他们大多数时间做研究。devote time to doing sth花费时间做某事,故用to doing,故选C。

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