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  3. Next time you feel the flu coming on, think twice before reaching for painkillers—they could do more【C1】______ than good. With t

Next time you feel the flu coming on, think twice before reaching for painkillers—they could do more【C1】______ than good. With t

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问题     Next time you feel the flu coming on, think twice before reaching for painkillers—they could do more【C1】______ than good. With the flu season【C2】______ way across Europe and North America, millions will be taking flu【C3】______, which commonly include painkillers. The general【C4】______ advice in the UK and the US is to take painkillers. But although painkillers can make you feel better they also lower fever, which can make the virus【C5】______.
    The first analysis of the effect of this on the【C6】______ shows that painkillers taken at current levels to【C7】______ fevers could cause 2,000 flu deaths each year in the US alone. Fever is thought to be a【C8】______ against viruses, because many viruses find it hard to【C9】______ above our normal 37 °C. Some studies have shown that lowering fever may【C10】______ virus-related infections and increase the amount of virus we can【C11】______ on to others.
    To find out what【C12】______ this might have on a flu epidemic, David Earn and his colleagues【C13】______ to a 1982 study which showed that ferrets, a【C14】______ animal model for human flu produced more【C15】______ flu virus if their fevers were lowered with painkillers. Earn’s team used these findings to estimate how much more virus people with【C16】______ flu might produce if their fevers were【C17】______.
    With the help of a mathematical model, Earn’s team【C18】______ their estimates to the number of people a year in the US who get flu,【C19】______ fever and take the drugs. They found that painkillers as used in the US could be increasing the【C20】______  of ordinary winter flu by up to 5 per cent.
【C16】
选项 A、ordinary
B、exceptional
C、specific
D、explicit
答案A
解析 此处提到研究小组要把动物实验的结果推及到人类服用止痛药治疗流感的情况。最后一段提到他们关于ordinary winter flu的推论，由此可判断选A项ordinary“普通的”。
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