The millions of calculations involved, had they been done by hand, ______ all pr

游客2023-11-23  28

问题 The millions of calculations involved, had they been done by hand, ______ all practical value by the time they were finished.

选项 A、had lost
B、would have lost
C、would lose
D、should have lost

答案 B

解析 本题测试虚拟语气:条件从句使用过去完成时,主句一般使用would have done。例如:I would have been glad if she hadn’t come this morning.如果她今天上午没来,我会很高兴的。The instructions would have been clear enough if only she had spoken in a more distinct voice.如果当时她用清晰的声音说出来,训令就不至于含糊不清。
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