A:适当升温,两溶液的pH均增大
B:常温下pH=10的碳酸钠溶液与pH=4的氯化铵溶液中水的电离程度相同
C:0.1 mol/L Na2CO3溶液中c(Na+)=c(CO32-)+c(HCO3-)+c(OH-)
D:0.1mol/L NH4Cl溶液中c(Cl-)>c(NH4+)>c(OH-)>c(H+)
This is an ______ story so I am very______.
-- Mum, I have nothing to do in my free time but do homework.
-- My dear, you should ___ a hobby like drawing or taking photos.
人们按方位把亚洲分为6个地区,其中中国位于哪个地区( )