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1. Finally, my thanks go to my tutor, who has offered a lot of suggestions and comments on my paper and ________ every page of my draft.
A. approved B. quoted C. polished D. folded
【考点】
动词的词义辨析;
【答案】

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单选题 普通
基础巩固
能力提升
拓展培优
真题演练
换一批
1. To protect the rare birds better, scientists have been       the changes in their number in the past decade.
A. securing B. charting C. displaying D. undergoing
单选题 容易
2. You are old enough to      your own living.

A. win B. gain C. take D. earn
单选题 容易