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  3. Air pollution triggers more heart attacks than using cocaine and poses as high a risk of sparking a heart attack as alcohol, cof

Air pollution triggers more heart attacks than using cocaine and poses as high a risk of sparking a heart attack as alcohol, cof

admin2018-08-10  9
问题     Air pollution triggers more heart attacks than using cocaine and poses as high a risk of sparking a heart attack as alcohol, coffee and physical exertion. The findings, published in The Lancet journal, suggest population-wide【C1】______like polluted air should be【C2】______more seriously when looking at heart risks, and should be put into context beside higher but relatively【C3】______risks like drug use. Researchers combined data【C4】______36 separate studies and calculated the relative risk【C5】______by a series of heart attack triggers. They found that of the triggers for heart attack studied, cocaine is the most【C6】______to trigger an event in an individual,【C7】______traffic has the greatest population effect as more people are【C8】______to it. A report published late last year found that air pollution in many major cities in Asia【C9】______the WHO’s air quality guidelines and that toxic cocktails of pollutants【C10】______more than 530,000 premature deaths a year.
    While【C11】______smoking was not included in this study, the researchers said the effects of second-hand smoke were likely to be【C12】______to that of outdoor air pollution, and noted previous research which found that bans on smoking in public places have significantly【C13】______heart attack rates. British researchers said last year that a ban on smoking in public places in England【C14】______to a swift and significant drop in the number of heart attacks,【C15】______the health service 8.4 million pounds in the first year.
   【C16】______, what triggers the heart attack should be considered the "last straw." The【C17】______of heart disease that lead to a heart attack are【C18】______down over many years. If someone wants to【C19】______a heart attack they should focus on not smoking, exercising, eating a healthy diet and【C20】______their ideal weight.
【C10】
选项 A、lies in
B、results in
C、adds to
D、derives from
答案B
解析 短语辨析及上下文语义题。该空依然是表示空气污染的负面影响。“超过63万人过早死亡”是“混合了各种有毒物质的空气”的结果，B项results in表结果，意为“导致”，为本题答案。
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