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  3. What is the reason that too much tea drinking makes people have trouble sleeping? Mention the different functions of caffeine a

What is the reason that too much tea drinking makes people have trouble sleeping? Mention the different functions of caffeine a

admin2009-04-23  89
问题 What is the reason that too much tea drinking makes people have trouble sleeping?
Mention the different functions of caffeine and alcohol.
选项
答案Caffeine stimulates nervous system while alcohol depresses it．或One stimulates and the other depresses nervous system
解析 比较异同时，要找两者之间最主要的回答。这句问题要求我们比较两者之间的不同。回答这类问题往往不是三言两语能说清楚的。我们要抓住最根本的来回答，千万别把原文整句整句地当答案抄。写得再好的答案如果过长，很可能会引起阅卷人的反感。在此，我们把nervous system作两个动词的宾语既省字数，也让人一看就明白。
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大学英语四级

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