A:溶液的pH值:②>③>①
B:水电离出的c(OH-):③>①>②
C:①和②等体积混合后的溶液:c(CH3COOH)+ c(CH3COO-)=0.1mol/L
D:②和③等体积混合后的溶液:c(Na+)+ c(H+)=c(OH-)+c(CH3COO-)
Look, there is ________ onion in the kitchen. We can cook it for dinner.