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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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In April ,2009,President Hu inspected the warships in Qingdao,____the both anniversary of the founding of the PLA Navy.

A.marking B.marked C.having marked D.being marked
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InApril,2009,PresidentHuinspec