Acid rain and snow result from the chemical reactions between industrial emissions of sulfur dioxide and nitrogen oxides and atmosphere water vapor to produce highly corrosive sulfuric and nitric acids.
Acid rain and snow（主语） result from （谓语）the chemical reactions between industrial emissions of sulfur dioxide and nitrogen oxides and atmosphere water vapor to produce highly corrosive sulfuric and nitric acids.（目的状语）
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发表于 2007-7-13 02:44:00
