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    24．When about the discovery of penicillin, Sir Alexander Fleming said: “ One sometimes finds what one Is not looking for. A. asked B. being asked C. to be asked D. asking 【查看更多】

     

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    When ________ about the discovery of penicillin, Sir Alexander Fleming said;“One sometimes finds what one is not looking for．”


    1. A.
      asked
    2. B.
      being asked
    3. C.
      to be asked
    4. D.
      asking

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    When ________ about the discovery of penicillin, Sir Alexander Fleming said;“One sometimes finds what one is not looking for．”

    [　　]
    A．

    asked

    B．

    being asked

    C．

    to be asked

    D．

    asking

    查看答案和解析>>


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