60.2Einstein____his theory and went on with his researcha.insisted onb.stuck toc.persisted ind.stick to

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60.2Einstein____his theory and went on with his researcha.insisted onb.stuck toc.persisted ind.stick to

60.2Einstein____his theory and went on with his researcha.insisted onb.stuck toc.persisted ind.stick to
60.2
Einstein____his theory and went on with his research
a.insisted on
b.stuck to
c.persisted in
d.stick to

60.2Einstein____his theory and went on with his researcha.insisted onb.stuck toc.persisted ind.stick to
选B.
D.肯定不对,因为时态是过去式
A.insist on doing sth.坚持做某事
insist on sth.强调/坚持sth.,一般是坚持某个已经存在的观点
C.persist in 一般指坚持某事,持续了很长一段时间