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    The experiment on the moon in July, 1971 proved that Galileo’s theory of falling objects true. A. was done; is B. being done; was C. done; is D. having been done; was 【查看更多】

     

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    The experiment _______ on the moon in July, 1971 proved that Galileo's theory of falling objects _______ true.


    1. A.
      Was done; is
    2. B.
      being done; was
    3. C.
      done; is
    4. D.
      having been done; Was

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    The experiment _______ on the moon in July, 1971 proved that Galileo's theory of falling objects _______ true.

    [　　]

    A．Was done; is
    B．being done; was
    C．done; is
    D．having been done; Was

    查看答案和解析>>

    The experiment _______ on the moon in July, 1971 proved that Galileo's theory of falling objects _______ true.

    [　　]

    A．Was done; is
    B．being done; was
    C．done; is
    D．having been done; Was

    查看答案和解析>>


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