To succeed in a scientific research project,______.A、persistence is neededB、per

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问题 To succeed in a scientific research project,______.

选项 A、persistence is needed
B、persistence is what one needs
C、one needs to be persistent
D、one needs be a persistent person

答案 C

解析 To succeed in a scientific research project意为“要取得科研项目的成功”，此为不定式作状语表示目的，因此应选以人作主语的句子C或D，D中的needs为实义动词，后面不能跟动词原形，因此C为正确答案。

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