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  • 更新 2022-09-03
  • 科目 英语
  • 题型 单选题
  • 难度 较易
  • 浏览 723

For some time now, Chinese people, under the leadership of CPC,       the contents of the Scientific Development Theory in the course of practicing socialism in China.

A.had been improving B.have been improving
C.were improving D.improved
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