To succeed on a scientific research project, ________.

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问题 To succeed on a scientific research project, ________.

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

答案A

解析 要想在科研项目上取得成功,必须坚持不懈。非谓语动词题。to succeed…是动词不定式作目的状语,后面主句的逻辑主语必须和这个不定式的逻辑主语一致。题干主语指的是人,可以用one作主语,首先排除B和D项选项;A和C项在语义上都符合语境,但C项的主语是one,谓语动词要用第三人称单数形式,need应该加-s,因此A为正确答案。
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