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  • 更新 2022-09-03
  • 科目 英语
  • 题型 单选题
  • 难度 较易
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It is the first time that Chinese astronaut Wang Yue________as one of the volunteers for the Mars-500 test project .   

A.has been selected B.had been selected C.has selected D.selected
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ItisthefirsttimethatChineseast