十二指肠后壁溃疡大出血时,破损的血管为()
A.胃右动脉分支
B.胃左动脉分支
C.胰十二指肠下动脉
D.胃十二指肠动脉或胰十二指肠上动脉
E.以上都不是
参考答案:D
______ environment is getting worse and worse because we human go against ______ nature. [ ]
A. The; the
B. The; /
C. An; the
D. /; the
消化性溃疡最常见的并发症是()
A.穿孔
B.癌变
C.幽门梗阻
D.上消化道出血
E.水、电解质紊乱