题目

The man over there is _______ old friend. He is a policeman. A . I B . me C . my D . mine 答案：C6．下列各种溶液的电离度按从大到小顺序排列的是（　　）①10℃0.1mol/L CH3COOH；②10℃0.5mol/L CH3COOH；③10℃0.1mol/L H2SO4；④10℃0.1mol/L H3PO4．A．③④①②B．④②③①C．④③②①D．①②③④