题型:不定项选择题 下列电离方程式一定正确的是[ ]A.CH3COOH = CH3COO-+H+B.Al2(SO4)3=2Al3++3SO42-C.HnRO2n-1= nH++(2n-1)ROn- D.H2SO4 = 2H++SO42- 查看答案