To succeed in a scientific research project _____.

To succeed in a scientific research project _____.
A、persistence is what one needs
B、persistence is needed
C、one needs be persistent
D、one needs to be persistent
【正确答案】：D
【题目解析】：动词不定式to succeed in a scientific research project的逻辑主语为某人，此主语应与全句主语一致，故排除A，B选项。C，D选项的主语均为某人，但C选项中need的用法不对，need做行为动词时，后面应接带to的动词不定式。