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  • 更新 2022-09-03
  • 科目 英语
  • 题型 单选题
  • 难度 较易
  • 浏览 271

After trying hard, they _______ the hope of finding an effective way to solve the problem.

A.abandoned B.released C.discouraged D.resigned
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Aftertryinghard,theythehopeoff