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    27．High-speed trains travel at 300 kilometers an hour, which is about normal trains. A．four times the speed as B．the speed four times of C．four times as the speed of D．four times the speed of 【查看更多】

     

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    High-speed trains travel at 300 kilometers an hour, which is about _____ normal trains.
    [     ]
    A. four times the speed as
    B. the speed four times of
    C. four times as the speed of
    D. four times the speed of

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    High-speed trains travel at 300 kilometers an hour, which is about ______normal trains.

    A．four times the speed as                          B．the speed four times of

    C．four times as the speed of                  D．four times the speed of

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    High-speed trains travel at 300 kilometers an hour, which is about         normal trains.

    A．four times the speed as                                B．the speed four times of

    C．four times as the speed of                        D．four times the speed of

    查看答案和解析>>

    High-speed trains travel at 300 kilometers an hour, which is about ________ normal trains．

    [　　]

    A．four times the speed as

    B．the speed four times of

    C．four times as the speed of

    D．four times the speed of

    查看答案和解析>>

    High-speed trains travel at 300 kilometers an hour, which is about ________ normal trains．

    [　　]

    A．four times the speed as

    B．the speed four times of

    C．four times as the speed of

    D．four times the speed of

    查看答案和解析>>


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