A:c(Na+)+ c(H+)= c(OH-)+ c(CH3COO-)
B:c(Na+)>c(CH3COO-)>c(H+)>c(OH-)
C:c(OH-)= c(H+)+ c(CH3COOH)
D:c(CH3COOH)+ c(CH3COO-)= c(Na+)
-Mum, can I eat ________ cakes?
-Sorry. There aren't ________ at home
学习化学以后,我们对水有了更全面的认识.下列说法错误的是( )
“种瓜得瓜,种豆得豆”,描述的生物特征是( )
下列关于《伤寒杂病论》的说法中,正确的是( )