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    Without electronic computers, much of today’s advanced technology ________．

    [　　]

    A．will not have been achieved

    B．have not been achieved

    C．would not have been achieved

    D．had not been achieved

    答案：C
    提示：

    本句表达的是与事实相反的假设。句意为：“假如没有计算机，当今的一些先进技术无法取得。”


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