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  • 更新 2022-09-03
  • 科目 英语
  • 题型 单选题
  • 难度 容易
  • 浏览 1664

It is 30 years ______ China performed the Reform and Opening-up policy ______ has had a great effect not just on China, but also on the world.

A.that; since B.since; 不填 C.when; that D.since; that
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Itis30yearsChinaperformedtheRe