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    23．Schools in the north tend to be well equipped, those in the south are relatively poor. A．once B．while C．as D．until 【查看更多】

     

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    Schools in the north tend to be well equipped,______ those in the south are relatively poor.

    　 A．once　　 　　 B．while　　　　　 　　　　　　　　 C．as　 　　 D．until

     

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    2010—2011学年度第二学期高三综合练习

    Schools in the north tend to be well equipped,______ those in the south are relatively poor.

           A．once                  B．while              C．as                        D．until

      

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