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    The population may be the greatest challenge of the world today. 【查看更多】

     

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    The ________ population may be the greatest challenge of the world today.

    [　　]

    A．increased
    B．increasing
    C．increase
    D．increasingly

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    The ________ population may be the greatest challenge of the world today.

    [　　]

    A．increased
    B．increasing
    C．increase
    D．increasingly

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    用下列单词的适当形式填空。

    The _____________ (increase) population may be the greatest challenge of the world today.

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    （用所给单词的适当形式填空） The _________ (increase) population may be the greatest challenge of the world today．

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