首页 > As more and more cars are produced and used, so the _____ from their exhaust-pipes contains an even
As more and more cars are produced and used, so the _____ from their exhaust-pipes contains an even
题目简介
As more and more cars are produced and used, so the _____ from their exhaust-pipes contains an even
题目详情
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
题型：单选题难度：偏易来源：不详
答案
D
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。
题目简介
As more and more cars are produced and used, so the _____ from their exhaust-pipes contains an even
题目详情
答案