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    18、Every means       to prevent the river from          .

    A．has been used; being polluted                       B．is used; polluted

    C．are used; being polluted                               D．got used; polluting

    18、A

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    Every means       to prevent the river from          .

    A．has been used; being polluted    B．is used; polluted

    C．are used; being polluted        D．got used; polluting

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    科目：高中英语 来源： 题型：

    Every means       to prevent the river from          .

    A．has been used; being polluted                       B．is used; polluted

    C．are used; being polluted                               D．got used; polluting

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