第20题: [单项选择]{{B}} Questions 11 to 18 are based on the conversation you have just heard.{{/B}} A. Eat a bigger breakfast. B. Make time for lunch in her schedule. C. Take only morning classes next semester, D. Change her schedule after she eats lunch. 参考答案:B 答案解析:[听力原文]
W: Wednesdays are going to be busy days for me next semester. Three class in the morning and
第38题: [单项选择]患者,男,58岁,有肝硬化病史,某日突然呕出400ml鲜血后出现神志恍惚、淡漠少言、口齿不清、嗜睡、昼睡夜醒。呕血后出现以上症状的原因是 A. 失血量多,导致休克 B. 失血后引起脑卒中 C. 失血造成脑组织缺氧 D. 失血量大,干扰脑代谢 E. 肠道积血产氨增多 参考答案:E 答案解析:由题干可知患者呕血后发生了肝性脑病。肝硬化大出血后血液淤积在胃肠道内,经细菌分解作用后,产生大量的氨,由肠壁扩散至血液循环,引起血氨升高,从而诱发肝性脑病。