第2题: [单项选择]What is probably the time for the appointment A. Perhaps because of the heavy roads. B. Perhaps because of the subway. C. Maybe they haven’t got the invitation. 参考答案:A 答案解析:[解析] 根据对话“哦,也许他们塞车”,可知本题答案为A。
第4题: [单项选择]电烧伤,深度烧伤伴有大量肌肉坏死,较合理的用药方案是 A. 大剂量青霉素和甲硝唑联合应用 B. 万古霉素和头孢他啶 C. 新青Ⅱ与哌拉西林联合 D. 泰能 E. 青霉素和丁胺卡那霉素联合 参考答案:A 答案解析:[解题思路] 电烧伤,深度烧伤伴有大量肌肉坏死者主要预防厌氧菌感染。青霉素和甲硝唑是临床上预防和治疗厌氧菌感染的一线药物。