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  3. 下面的短文有15处空白，请根据短文内容为每处空白确定1 个最佳选项。 Taking a Nap during the Day Medical e...

下面的短文有15处空白，请根据短文内容为每处空白确定1 个最佳选项。 Taking a Nap during the Day Medical e...

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问题 下面的短文有15处空白，请根据短文内容为每处空白确定1 个最佳选项。
Taking a Nap during the Day
Medical experts say most Americans do not get enough sleep. They say more Americans need to ____________ (1) for a short period in the middle of the day. They are advising people to sleep lightly____________ (2) continuing with other activities.
One study earlier this year found that persons who sleep for a few minutes during the day were less likely to die of_____ ; (3) disease. The study followed more than 2, 300 Greek adults____________ (4) about six years. Adults who rested for half an hour at least three times a week had a 37 percent lower ________ (5 ) of dying from heart disease than those who did not nap.
Study organizers said the strongest_________ (6) was in working men. They said naps might improve health by mitigating （减低）tension  (7) by work.
Some European and Latin American businesses have supported the idea of _________ (8) for many years. They urge （催促）people to ____________ (9 ) work, go home and have a nap before returning. In the United States, some companies let workers rest briefly in their offices. They believe this reduces mistakes and accidents, and also____________ (10) the amount of work a person can do.
Sleep experts say it is likely that people _ _ _ _ _ (11) more mistakes at work than at other times. They say people should not carry out important duties____________ (12) they feel sleepy. And they say the best thing to do is to take a nap. About twenty minutes of rest is all you____________ (13). Experts say this provides extra energy and can increase your____________ (14) until the end of the day. But experts____________ (15) that a nap should last no more than twenty to thirty minutes. A longer nap will put the body into deep sleep and waking up will be difficult.
(12)
选项 A because
B when
C although
D since
答案B
解析
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