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  • 更新 2022-09-03
  • 科目 英语
  • 题型 单选题
  • 难度 较易
  • 浏览 809

 A team of American scientists has found a treatment to protect humans from the deadly H5N1 flu virus, ________ brings great ________ to the world.

A.that; appearance B.which; relief C.which; advantage D.that; profit
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AteamofAmericanscientistshasfo