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    There is a lot of air in loose snow, . A. this to keep the cold out B. that keep the cold off C. which keep the cold out D. it to keep the warm in 【查看更多】

     

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    There is a lot of air in loose snow, ______．　　　

    [　　]

    A．this to keep the cold out　　　B．that keep the cold off

    C．which keeps the cold out　　　D．it to keep the warm in

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