第25题: [单项选择]女性,22岁。既往间断上腹痛,伴反酸、胃灼热等症状,常于进食后好转。1天前出现黑便,无呕血,辅助检查示便潜血(+++),因此诊断为上消化道出血。其病因最可能为() A. 急性胃炎 B. 慢性胃炎 C. 十二指肠球部溃疡 D. 反流性食管炎 E. 食管贲门黏膜撕裂 参考答案:C 答案解析:引起上消化道出血的常见病因为消化性溃疡、肝硬化合并食管或胃底静脉曲张破裂、胃癌;应激性溃疡等,其中消化性溃疡是最常见的病因,根据该患者有"腹痛-进食-缓解"规律,考虑十二指肠溃疡可能性大。
第31题: [单项选择]Why did Jackie think Andrew was making up the story A. She was sure Andrew was joking. B. She had never heard about it. C. She thought it totally impossible. D. It had never been mentioned anywhere. 参考答案:C