A:Ⅱ为盐酸稀释时的pH值变化曲线
B:b点溶液的导电性比c点溶液的导电性强
C:a点KW的数值比c点KW的数值大
D:b点酸的总浓度大于a点酸的总浓度
中国从沙特进口石油,海上运输线最近的是( )
He gives the food me. That's very kind him.
—Will you please give some advice on _________ English at home?
—Well, do a lot of reading and listen to English programs.