[讨论]大全164

Sorry, I get problem to type Chinese in my computer. I remember there's discussion about this following question, but I can't find it right now. Anybody can help me? Why "less" is right in E? Thanks!

    Because natural gas is composed mostly of methane, a simple hydrocarbon, vehicles powered by natural gas emit less of certain pollutants than the burning of gasoline or diesel fuel.

(A) less of certain pollutants than the burning of gasoline or diesel fuel

(B) fewer of certain pollutants than burning gasoline or diesel fuel do

(C) less of certain pollutants than gasoline or diesel fuel

(D) fewer of certain pollutants than does burning gasoline or diesel fuel（E）

(E) less of certain pollutants than those burning gasoline or diesel fuel

http://forum.chasedream.com/dispbbs.asp?boardid=23&star=1&replyid=449671&id=28829&skin=0&page=1

http://forum.chasedream.com/dispbbs.asp?BoardID=23&replyID=112568&id=16526&star=1&skin=0

应该已经解释清楚了。

我想除了less的用法和few的用法不同以外

这题最重要的考点是than的平衡

应该是vehicles powered by natural gas emit less of certain pollutants than vehicles (those)  burning gasoline or diesel fuel 除了E, 其它选项并没有补出vehicles