A:A是向NaAI(OH)4溶液中滴入HCl至过量
B:B是向澄清石灰水中通入至过量
C:C是向含有盐酸的溶液中滴入NaOH溶液至过量
D:D是向含有等物质的量的、KOH的混合溶液中通入至沉淀消失
Not only Tom but also I from the city of Paris.