题目

— May I have a look?（）— A . This is a dog. B . Sure. Here you are. C . Look at me. D . Bye! 答案：B电解质是（　　）A．在水溶液中或熔融状态下能导电的化合物B．在水溶液中或熔融状态下全部电离的化合物C．导电性很强的物质D．可溶性盐类