GWD-5-38

[复制链接]

groundkeeper

楼主

发表于 2004-7-3 19:07:00 | 显示全部楼层

I think A{More of the cars in Donia’s capital city were made before 1993 than after 1993} violates the premise {the proportion of new cars in Donia’s capital city has always been comparatively high}, so how does it help to explain the insignificant decline in nitrogen dioxide emissions in Donia’s capital city?

个人意见。呵呵,请各位指点