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    26．Even if there is no scientific proof yet secondhand smoke causes cancer, there is no reason why nonsmokers should be forced to take this risk． A．which B．that C．when D．where 【查看更多】

     

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    26．Even if there is no scientific proof yet ______ secondhand smoke causes cancer, there is no reason why nonsmokers should be forced to take this risk．

           A．which      B．that   C．when      D．Where

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    Even if there is no scientific proof yet ______ secondhand smoke causes cancer, there is no reason why nonsmokers should be forced to take this risk．

    A．which          B．that         C．when           D．where

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    26．Even if there is no scientific proof yet ______ secondhand smoke causes cancer, there is no reason why nonsmokers should be forced to take this risk．

    A．which B．thatC．whenD．Where

    查看答案和解析>>


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