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  • 更新 2022-09-03
  • 科目 英语
  • 题型 单选题
  • 难度 较易
  • 浏览 991

The Internet celebrated its birthday on September 2nd, by which time 40 years _______ since the first successful transfer of data between two computers.

A.has passed B.had passed C.passed D.have passed
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