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    being treated, it would produce a harmful chemical that would kill the patient. A. Unless B. If C. As D. Without 【查看更多】

     

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    .（2010·湖南祁阳四中高三上第一次月考）      27. ______ being treated, it would produce a harmful chemical that would kill the patient.

    A. Unless    B. If      C. As        D. Without

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