56. 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
为什么是E不是C啊？
那为什么不能 a b 呢，
那个 between 是跟哪个 and 的，怎么知道
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
Choice A and B are faulty because the idiomatic form of expression is between X and Y, not between X with Y. Also, in choice B producing…modifies the nearest noun, water vapor, rather than chemical reactions and thereby seems to say that the water vapor alone produced the corrosive acids. Choices C and D are clumsy, and both misuse which: in C which has… illogically modifies water vapor, and in D it is unclear whether which have modifies reactions or sulfur dioxide, nitrogen oxides, and water vapor taken together. E is the best choice for this very difficult question.
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