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    19．A recent study showed how the temperature, water freezes, can be changed using electric charges． A．at which B．for which C．in which D．with which 【查看更多】

     

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    A recent study showed how the temperature, ________ water freezes, can be changed using electric charges．


    1. A.
      at which
    2. B.
      for which
    3. C.
      in which
    4. D.
      with which

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    A recent study showed how the temperature, ____ water freezes, can be changed using electric charges.

    [     ]

    A. at which
    B. for which
    C. in which
    D. with which

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    A recent study showed how the temperature, ________ water freezes, can be changed using electric charges．

    [　　]
    A．

    at which

    B．

    for which

    C．

    in which

    D．

    with which

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