As more and more cars are produced and used, so the _____ from their exhaust-pip
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As more and more cars are produced and used, so the _____ from their exhaust-pipes contains an even larger volume of poisonous gas.A.exposure | B.distribution | C.expansion | D.emission |
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答案
D |
解析
emission散发物,发射。exposure(to)暴露于:They believe that their health problems are the result of years of exposure to fine cotton dust.(他们认为,他们的健康问题是多年来暴露于棉花粉尘所致。)expansion膨胀,扩大;Heat causes the expansion of gas.本题译文:正如汽车的生产和使用越来越多一样,汽车的排气管的散发物内所含的有毒气体量也在增加。 |
举一反三
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