标题: 新prep1-104 非问题中的问题 [打印本页] 作者: yaao 时间: 2011-9-24 17:22 标题: 新prep1-104 非问题中的问题 Nitrogen dioxide is a pollutant emitted by automobiles. Catalytic converters, devices designed to reduce nitrogen dioxide emissions, have been required in all new cars in Donia since 1993, and as a result, nitrogen dioxide emissions have been significantly reduced throughout most of the country. Yet although the proportion of new cars in Donia's capital city has always been comparatively high, nitrogen dioxide emissions there have showed only an insignificant decline since 1993. Which of the following, if true, most helps to explain the insignificant decline in nitrogen dioxide emissions in Donia's capital city? A. More of the cars in Donia's capital city were made before 1993 than after 1993. B. The number of new cars sold per year in Donia has declined slightly since 1993. C. Pollutants other than nitrogen dioxide that are emitted by automobiles have also been significantly reduced in Donia since 1993. D. Many Donians who own cars made before 1993 have had catalytic converters installed in their cars. E. Most car trips in Donia's capital city are too short for the catalytic converter to reach its effective working temperature.
没有 significant decline since 1993，题目里只有 insignificant decline since 1993好像
-- by 会员 sandychen168 (2011/9/25 21:08:24)
Nitrogen dioxide is a pollutant emitted by automobiles.Catalytic converters, devices designed to reduce nitrogen dioxide emissions, have been required in all new cars in Donia since 1993, and as a result, nitrogen dioxide emissions have been significantly reduced throughout most of the country.Yet although the proportion of new cars in Donia's capital city has always been comparatively high, nitrogen dioxide emissions there have showed only an insignificant decline since 1993.
我是问红色那部分的significantly reduced 原因，不是蓝色那部分作者: yaao 时间: 2011-10-1 17:18
没有NN帮忙看下吗?作者: cdwayne 时间: 2011-10-2 22:57
好吧，你仔細再看一下，這是矛盾題：預期A，結果B，請解釋。作者: yang1786 时间: 2011-10-3 06:26
1993年，在全国大部分地方（一个大整体），installation of this converter是奏效的，所以使得most of country 的nitrogen dioxide emissions是减少了的。题目问的是为什么这个国家的首都（局部），在安装converter后，emmission没有显著的降低。不知道这样说有没有回答你的问题呢？作者: mongmong 时间: 2012-5-6 16:57
我看漏了题了，我来来回回读了几遍，也没有看到paradox在于 most of the country and its capital city. 我还在想呢，这题怎么这样，刚说完A, 又说不是A, 还让人解释。