第17题: [单项选择]What do we know about the flight A. There will be a short delay. B. There will be a long delay. C. The flight has been cancelled. D. The condition is still uncertain. 参考答案:A 答案解析:M: Excuse me, has there been an emergency
W: Oh, no, sir, there is just a storm. So the plane will
第32题: [单项选择]首选大环内酯类抗生素治疗的肺炎是() A. 干酪性肺炎 B. 肺炎球菌肺炎 C. 肺炎支原体肺炎 D. 呼吸道合胞病毒肺炎 E. 曲霉性肺炎 参考答案:C 答案解析:红霉素属大环内酯类抗菌药物。抗菌谱与青霉素相似;对军团菌、衣原体、支原体、空肠弯曲菌有较好的抑制作用。其抗菌机制为抑制细菌蛋白质的合成。适用于青霉素G的轻症感染,耐青霉素的金葡菌感染和青霉素过敏的患者