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  • 更新 2022-09-03
  • 科目 英语
  • 题型 单选题
  • 难度 较易
  • 浏览 1364

____ has been proved again and again that ____ is said in the ads greatly affects people’s impression of the products.

A.There; what B.There; that C.It; which D.It; what
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hasbeenprovedagainandagainthat