单选题
To succeed in a scientific research project, ______. A. persistence is needed B. persistence is what one needs C. one needs to be persistent D. one needs be a persistent person
【正确答案】
C
【答案解析】[解析] to succeed in a scientific research project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,后面不能跟原形动词,因此C为正确答案。