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  • 更新 2022-09-03
  • 科目 英语
  • 题型 单选题
  • 难度 中等
  • 浏览 441

Plastic bags are provided for our convenience but they also have __________ the pollution of the environment.

A.referred to
B.led to
C.reacted to
D.attended to
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Plasticbagsareprovidedforourco