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The millions of calculations involved, if they had been done by hand, all practi
The millions of calculations involved, if they had been done by hand, all practi
游客
2023-11-29
11
管理
问题
The millions of calculations involved, if they had been done by hand, all practical value have lost by the time they were finished.
选项
答案
虚拟语气错误,应在have前加上would。
解析
本句包含了与过去事实相反的虚拟条件句,从句谓语动词使用了had+过去分词,主句谓语动词应使用would/could/should/might+have+过去分词。句意为“如此之大的计算量,如果用手工计算的话,等到完成的时候也失去了所有的实用价值。”根据句意,在have前加上would最合适。
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