Why does the author say summer is a good time to take a long vacation from thinking _____?
A、Because a long vacation in summer helps to improve people’s mental power.
B、Because people tend to be less creative during summer
C、Because summer is a good time for outdoor activities
D、Because mental exertion in the summer heat taxes too much of people’s energy
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试题解析
推理题。第二段的最后一句“It does mean, however, that the mental abilities of large numbers of people tend to be lowest in summer”指出大部分人的智力在夏季处于最低水平。