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  • 更新 2022-09-03
  • 科目 英语
  • 题型 单选题
  • 难度 中等
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23. Failure as he has been in his previous attempts, he still sticks _________ the research aimed _______ increasing production.

A.in; to B.out; at C.on; in D.with; at
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23.Failureashehasbeeninhisprev