2017年卫生职称英语考试每日一练:补全短文(12月14日)
2016-12-14 09:37 来源:医学教育网
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补全短文
The smoke that comes from a lit cigarette contains many different poisonous chemicals. In the past, scientists did not think that these chemicals could harm a nonsmoker‘s health. ________. They discovered that even nonsmokers had unhealthy amounts of these toxic (有毒的) chemicals in their bodies.
A.The Gilsons have been married for 35 years.
B.Recently, though, scientists changed their opinion after they studied a large group of nonsmokers.
C.We cannot avoid secondhand smoke in restaurants.
D.In the United States, nine million children under the age of five live in homes with at least one smoker.
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