题海让大学四年没有难题
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题目详情

单选题 Many a professor _____ looking forward to visiting Germany now. Many scientists _____ studied animals and plants in the last two years

A. is; have

B. is; has

C. are; have

D. is; are

学科:大学英语(二)

时间:2023-05-17 11:33:53

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