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    The research has caused lots of argument.Some think it is a bad idea, others support it. A.when B.however C.while D.so 答案:C 提示:while在此处作连词.表示前后对比.意为“然而 . 而however之后应加一个逗号. 【查看更多】

     

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    The research has caused lots of argument. Some think it is a bad idea, _____ others support it.


    1. A.
      when
    2. B.
      however
    3. C.
      while
    4. D.
      so

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    The research has caused lots of argument. Some think it is a bad idea, _____ others support it.

    [　　]

    A．when　　　B．however

    C．while　　 D．so

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