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  • 更新 2022-09-03
  • 科目 英语
  • 题型 单选题
  • 难度 中等
  • 浏览 325

________ the jewels were locked in a strong box,the thieves stole them without any difficulty.

A.If B.Unless C.Although D.Because
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thejewelswerelockedinastrongbo