单项选择题

He ______ unwisely, but he was at least trying to do something helpful.

A．may have acted
B．must have acted
C．should not act
D．would not act
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单项选择题
The spokesman admitted that the government s thoughtless policy had caused a crisis that ______.
A．could never have happened
B．might have happened
C．should never have happened
D．would never have happened
单项选择题
Which of the following sentences is INCORRECT
A．We live in a society which there is a lot of talk about science.
B．We are more ignorant of science as people with comparable education in Western Europe.
C．Handle them carefully, for words have more power than atom bombs.
D．No society has yet learned to forecast the consequences of new technology, which can be enormous.
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