2. 外语
  3. The author mentions "pick-me-up" to indicate that What does paragraph 3 mainly discuss?

The author mentions "pick-me-up" to indicate that What does paragraph 3 mainly discuss?

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问题 The author mentions "pick-me-up" to indicate that
What does paragraph 3 mainly discuss?
选项 A、Different effects of caffeinated coffee and decaf on sleep.
B、Different findings of Lotan Shilo and a team about caffeine.
C、The fact that the subjects slept 415 minutes per night after drinking decaf.
D、The evidence that the subjects took half an hour to fall asleep.
答案A
解析 第三段涉及的是一个实验，这个实验的目的是测试含咖啡因咖啡和脱咖啡因咖啡对睡眠的影响，该段主要谈论的是这个实验的结果。
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