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16. At school, some students are active    some are shy, yet they can be good friends with one another.

A. while  B. although

C. so    D, as

16.   A考查并列连词。句意:在学校,一些学生很活跃而一些却很害羞,然而他们可能成为好朋友。根据句意选while,表示两个分句中两种情况的对比。

题目来源:2015全品语法快练高中英语新课标 > 训练9祈使句、并列句、感叹句和惯用法

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C

A study suggests that apple-shaped women with a waist bigger than 88cm have a higher risk of developing asthma(哮喘)一even if their body-weight is normal.

Being overweight is well known to raise the risk of asthma. But the lat?est study suggests that the amount of weight women carry around the abdo?men might be particularly important. The study, by the Northern California Cancer Centre at Berkeley, appears in the journal Thorax. The results of research showed that overweight women were 40% more likely to have asth?ma than women of normal body weight. Asthma was more than twice as likely in fat women, and more than three times as likely in extremely fat women than in those of normal body weight.

But perhaps more surprisingly, the researchers also found that women of normal body weight but with a waistline of more than 88cm were also at increased risk—around a third higher than those with a smaller waist. Some researchers argue that the waistline may be a more useful measure because it more closely reflects levels of visceral fat (内脏脂肪)found around the body's organs. Visceral fat is different from other types of fat found in the body, and may have different and more important effects on health. Re?searcher Julid Von Behren said, "Visceral fat is more active. It can produce something that may cause inflammation (炎症).The inflammation may then be related to asthma."

It is important that people with asthma eat a healthy, balanced diet, which is low in fat and sugar, and take regular exercise.

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