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第七篇

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发布时间： 2016-08-25

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1共用题干单选题 3分

Theauthormentionspick-me-uptoindicatethat____

  • A. melatonin levels need to be raised
  • B. neurohormone can wake us up
  • C. coffee is a stimulant
  • D. decaf is a caffeinated coffee
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正确答案： -

本题解析： 暂无解析

2共用题干单选题 3分

Whichofthefollowingtellsushowcaffeineaffectssleep?

  • A. Caffeine blocks production of the enzyme that stops melatonin production
  • B. Caffeine interrupts the flow of the hormone that prevents people from sleeping
  • C. Caffeine halves the body"s levels of sleep hormone
  • D. Caffeine stays in the body for many hours
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正确答案： -

本题解析： 暂无解析

3共用题干单选题 3分

Whatdoesparagraph3mainlydiscuss?

  • 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
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正确答案： -

本题解析： 暂无解析

4共用题干单选题 3分

Whatdoestheexperimentmentionedinparagraph4prove?

  • A. There are more enzymes in decaf drinkers" urine sample
  • B. There are more melatonin concentrations in caffeine drinkers" urine sample
  • C. Decaf drinkers produce less melatonin
  • D. Caffeine drinkers produce less sleep hormone
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正确答案： -

本题解析： 暂无解析

5共用题干单选题 3分

Theauthorofthispassageprobablyagreesthat____

  • A. coffee lovers sleep less than those who do not drink coffee
  • B. we should not drink coffee after supper
  • C. people sleep more soundly at midnight than at 3 am
  • D. if we feel sleepy at night, we should go to bed immediately
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正确答案： -

本题解析： 暂无解析

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