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  • 更新 2022-09-03
  • 科目 英语
  • 题型 单选题
  • 难度 较易
  • 浏览 1635

Chemical processes _______in the treatment of materials for clothes _______the environment badly in some countries nowadays.

A.involve;damaging B.involved;damaged
C.involving;damage D.involved;damage
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Chemicalprocessesinthetreatmen