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5、 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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出自：乐山师范学院英语读写译

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