单项选择题

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

A．had lost
B．would lose
C．would have lost
D．should have lost
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单项选择题
In no country ______ Britain, it has been said, can one experience four seasons in the course of a single day.
A．other than
B．more than
C．better than
D．rather than
单项选择题
I can understand their eagerness that you ______ the main speaker.
A．be
B．shall be
C．are to be
D．must be
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