题目

有一句俗语叫“雷雨发庄稼”,其所包含的化学过程有(用化学方程式表示):(1) (2) (3) 答案:【1】N2+O22NO【2】2NO+O2=2NO2【3】3NO2+H2O=2HNO3+NO—   , Tony? —I feel terrible. Maybe I have a cold.A.How are you B.What’s the matter C.Are you really ill D.Why not go to a doctor
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