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    18．Many people believe we are heading for environmental disaster we basically change the way we live． A．but B．although C．unless D．once 【查看更多】

     

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    Many people believe we are heading for environmental disaster _____ we basically change the way we live.

    A．butB．althoughC．unlessD．once

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    Many people believe we are heading for environmental disaster _____ we basically change the way we live.

    A．but              B．although          C．unless            D．once

     

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    Many people believe we are heading for environmental disaster _____ we basically change the way we live.

    A. but　　　 B. although　　　 C. unless　　 D. once

     

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    Many people believe we are heading for environmental disaster _____ we basically change the way we live.

    A. but　　　 B. although　　　 C. unless　　 D. once

     

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    Many people believe we are heading for environmental disaster _____ we basically change the way we live.


    1. A.
      but
    2. B.
      although
    3. C.
      unless
    4. D.
      once

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