上消化道出血后内镜检查的最佳时间是
A. 24h内
B. 24~48h
C. 48~72h
D. 3~5d
E. 5~7d
肝硬化病人出现全血细胞减少,最主要的原因是
A. 功能性肾衰竭
B. 营养吸收障碍
C. 叶酸缺乏
D. 脾功能亢进
E. 凝血因子合成减少
The exhaust ports of a diesel engine using the cross-flow scavenging method are opened and
A. reciprocating motion of exhaust valves
B. rotary motion of the camshaft
C. reciprocating motion of the piston
D. developed differential
肝性脑病病人禁用的治疗是
A. 硫酸镁导泻
B. 食醋灌肠
C. 温水灌肠
D. 肥皂水灌肠
E. 生理盐水灌肠