问题 单项选择题

For nearly 50 years, Spock has been a ______ author writing 13 books including an autobiography and numerous magazine articles.

A.prevalent

B.precautious

C.prospective

D.prolific

答案

参考答案:D

解析: D项“prolific多产的”,如:Apple trees are prolific. 苹果树是多产植物。根据空格处的意思“Spock是个多产的作家”,故选D。A项prevalent“普遍的,流行的”;B项precautious“警戒的,小心的”;C项prospective“预期的,有希望的”,均不符合题意。

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单项选择题