题目内容

The letters referred to in the first paragraph must have ______.

A. complained that carbon monoxide had affected their own ability to think
B. complained that carbon monoxide had affected other people's ability think
C. opposed the limiting of the use of cars
D. proposed the limiting of the use of cars

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The letters referred to in the first paragraph must have ______.

A. complained that carbon monoxide had affected their own ability to think B. complained that carbon monoxide had affected other people's ability think C. opposed the limiting of the use of cars D. proposed the limiting of the use of cars

What kind of haircut did the man want

设f(x)=x2(x-1)(x-2)，则f'(x)的零点个数为______．

What were the men doing according to the police

It has been estimated that the earth's surface temperature has increased ______ one quarter to three quarters of a degree since 1850. ~

A. complained that carbon monoxide had affected their own ability to think
B. complained that carbon monoxide had affected other people's ability think
C. opposed the limiting of the use of cars
D. proposed the limiting of the use of cars