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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

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

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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 al-though painkillers can make you feel better they al-so 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 fer-rets, 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, Eam’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.  
【C17】
选项 A、expressed
B、oppressed
C、impressed
D、suppressed
答案D
解析 第2段最后一句提到“退热会增加感冒病毒的数量”，反推过来，“感冒病毒的数量增加了”则应该对应“退热”，据此可推断空格处应需填入与lower意思差不多的词，故选D项sup-pressed“抑制”，通常表示药物或疾病抑制了身体的自然功能或反应。B项oppressed“压迫，压抑”表示通过不公正使用权威的方式压迫、迫害他人，使承受痛苦，与此处语境不符。A项expressed“表达(某种观点或情感)”和C项impressed“给……留下印象”代入空格，句意不通，皆可排除。
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