常温下,用 0.1000 mol/L NaOH溶液滴定 20.00mL0.1000 mol/L CH3COOH溶液所得滴定曲线如图。下列说法正确的是
A.点①所示溶液中:c(CH3COO-)+ c(OH-)=c(CH3COOH)+ c(H+)
B.点②所示溶液中:c(Na+)=c(CH3COOH)+ c(CH3COO-)
C.点③所示溶液中:c(Na+) >c(OH-) >c(CH3COO-) > c(H+)
D.滴定过程中可能出现:
c(CH3COOH) >c(CH3COO-) > c(H+)>c(Na+) >c(OH-)