搜题
王老师:19139051760(拨打)
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第1题

He is doing some research on the ____ system of animals. 单选题 (2 分) 2分 A. auditory B. sound C. listening
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第2题

You can’t use the bike at once-you have to ______. 单选题 (2 分) 2分 A. take a turn B. take turn C. take turns
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第3题

They were convicted ___ having killed 20 persons. 单选题 (2 分) 2分 A. of B. with C. for
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第4题

The book had a great impact ___ its readers. 单选题 (2 分) 2分 A. of B. for C. on
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   负责人：王老师 19139051760(拨打)

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