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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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China’s high-speed railways(中国高铁)________ rapidly during the past few years. Now many foreign countries invite them to make contributions to building up their homelands.
A. have developed
B. developed
C. develop

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China’shighspeedrailways(中国高铁)