题目内容

People didn't wash in those days because ______.

A. they had no water in their houses
B. they had to buy water from a water-carrier and it was expensive
C. soap was expensive, too
D. all of the above

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Geothe often did outdoor skating and swimming.

A. Right
B. Wrong
C. Not mentioned

The writer's advice about alcohol before you make a speech is to take one or two drinks so

A. Right
B. Wrong
C. Not mentioned

The "American sleep debt" (Para. 3) is the result of ______.

A. the traditional misconception the Americans have about sleep
B. the new sleep policy of the Clinton Administration
C. the rapid development of American industry
D. the Americans' worry about the danger or sleepiness

The research done by the Dement Commission shows that Americans ______.

A. don't like to take naps
B. are terribly worried about their national debt
C. sleep less than is good for them
D. have caused many industrial and traffic accidents

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