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    The work is easy for an expert it is difficult for an inexperienced person. A. because B. therefore C. while D. unless 【查看更多】

     

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    _The work is easy for an expert _______it is difficult for an inexperienced person.

    A.because                            B.therefore

    C.while                        D.unless

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    The work is easy for an expert _______it is difficult for an inexperienced person.


    1. A.
      because
    2. B.
      therefore
    3. C.
      while
    4. D.
      unless

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    The work is easy for an expert ________ it is difficult for an inexperienced person．

    [　　]

    A．because

    B．therefore

    C．while

    D．unless

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    The work is easy for an expert ________ it is difficult for an inexperienced person．

    [　　]

    A．because

    B．therefore

    C．while

    D．unless

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