题目脂肪族饱和一元羧酸分子通式为()。A. CnHn+2 O 2B. CnH 2 n+102C. CnH 2 nO 2D. CnH 2 n+2 O 2脂肪族饱和一元羧酸分子通式为()。A. CnHn+2 O 2B. CnH 2 n+102C. CnH 2 nO 2D. CnH 2 n+2 O 2题目解答答案C. CnH 2 nO 2