补充题１５

good-will

15.   Acid rain and snow result from the chemical reactions between industrial emissions of sulfur dioxide and nitrogen oxides with atmospheric water vapor to produce highly corrosive sulfuric and nitric acids.

(A) with atmospheric water vapor to produce highly corrosive sulfuric and nitric acids

(B) with atmospheric water vapor producing highly corrosive sulfuric and nitric acids

(C) and atmospheric water vapor which has produced highly corrosive sulfuric and nitric acids

(D) and atmospheric water vapor which have produced sulfuric and nitric acids which are highly corrosive（E）

(E) and atmospheric water vapor to produce highly corrosive sulfuric and nitric acids

c好象表达得更清楚些，答案是e，不定式在此不会造成修饰不清晰吗

celinapple

C肯定不是正确答案，has指代谁呢？前面的名次都是复数形式。

good-will

顺便问个问题a and b which(that) ,无论什么情形which(that)均是修饰a and b,而不能单独修饰b?

ireneyuz

可以修饰b，但是你看看后面的从句意思，which has produced highly corrosive sulfuric and nitric acids， 只有water可能产生酸啊什么的吗？

所以一定要整体看，作整体的分析。

good-will

e中的to不定式是修饰什么的...