题海让大学四年没有难题
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单选题 "When I was wrapping up my Ph.D. after having spent countless hours centrifuging yeast..." What is the closest meaning of "wrapping up" here

A. Covering

B. Finishing

C. Starting

D. Continuing

大学英语2课程封面

学科:大学英语2

时间:2026-05-19 13:15:50

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