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    49． The medicine cool, clean and dry according to the instruction． A． must be cleaned B． must be kept C． should be carried D． should be placed 【查看更多】

     

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    The medicine ________ cool, clean and dry according to the instruction．


    1. A.
      must be cleaned
    2. B.
      must be kept
    3. C.
      should be carried
    4. D.
      should be placed

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    The medicine ________ cool, clean and dry according to the instruction．

    [　　]

    A．must be cleaned

    B．must be kept

    C．should be carried

    D．should be placed

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