常温下,将一定浓度的盐酸和醋酸加水稀释,溶液的导电能力随溶液体积变化的曲线如图所示。下列说法正确的是() A . 两溶液稀释前的浓度相同 B . a、b、c三点溶液的pH由大到小顺序为b>a>c C . b点的Kw值比a点的Kw值大 D . a点水电离的n(H+)小于c点水电离的n(H+) 答案:BJohn didn’t choose of the ties and went away without looking at a third one. A.many B.either C.all D.any