第21题: [单项选择]局麻剂()。 A. 盐酸普鲁卡因 B. 苯甲醇 C. 硫代硫酸钠 D. 明胶 E. 葡萄糖 参考答案:A 答案解析:本题考查要点是“注射剂常用的附加剂”。(1)常用局麻剂有:盐酸普鲁卡因、利多卡因。(2)常用抑菌剂有:苯酚、甲酚、氯甲酚、苯甲醇、三氯叔丁醇、硝酸苯汞、尼泊金类。(3)常用抗氧剂有:焦亚硫酸钠、亚硫酸
第28题: [单项选择]Questions 11 to 18 are based on the conversation you have just heard. A. She’s tired. B. She’s generous. C. She’s rich. D. She’s intelligent. 参考答案:D 答案解析:[听力原文] W: Julia had the highest grade in the class on the calculus test. That was the most diffic