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    On Feb．6,Xi’an-Zhengzhou High-Speed Railway. first high-speed railway in West China.was put into operotion. A.不填,the． B．the,the C．the,不填 D．不填,不填 【查看更多】

     

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    On Feb．6,Xi’an-Zhengzhou High-Speed Railway，_____________first high-speed railway in_______West         China，was put into operotion.

        A.不填；the．  B．the；the    C．the；不填    D．不填；不填

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