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The millions of calculations involved, had they been done by hand,______all practical value by the time they were finished.
The millions of calculations involved, had they been done by hand,______all practical value by the time they were finished.
admin
2012-02-18
64
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、could lose
B、would have lost
C、might lose
D、ought to have lost
答案
B
解析
本题测试虚拟语气过去时,had they been done by hand意为“如果用手计算的话”为省略if的虚拟条件句,所以主句应选would have lost。
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