患者男,46岁。十二指肠溃疡病史6年,近3天因劳累出现腹痛、呕血,量约5ml,该患者最可能的诊断是()
A campus emergency ______ occur at any time of the day or night, weekend, or holiday, with little or no warning.
免费的网站请分享给朋友吧