Without electronic computers, much of today’ s advanced technology______.

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问题 Without electronic computers, much of today’ s advanced technology______.

选项 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

解析 本题考查虚拟语气的用法。句意:要是没有电子计算机的话,现在的很多先进的技术就无法获得。without引导的介词短语表示潜在的一种假设,相当于if引导的条件状语从句,即:Without electroniccomputers=If there were not electronic computers。由于主句中的情况早已经发生,所以这是对过去情况的一种假设,故主句的谓语动词为“would+have done”。故选C。
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