急求助：86OG-15即CD22-20

winnie117

 86OG- 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

答案E，to produce....修饰的是谁？记得prep语法上曾经说过不要用to do修饰，会造成修饰对象不清楚的状况。谢谢！

winnie117

顶一下！我选的是c,nn能解释一下为什么不对吗？

遥遥G梦

 修饰的是chemical reactions

C is wrong because "water vapor" can not  produce  "corrosive sulfuric and nitric acids"

winnie117

非常感谢遥遥G梦！句子的结构是：

Acid rain and snow result from 。。。between。。。and。。。to produce。。。明白了！