单项选择题
A.补液,洗胃 B.补液,胃肠减压,留观 C.急诊胃大部切除 D.胃肠减压,补液,洗胃,择期行胃大部切除术 E.胃肠减压,补液,洗胃,择期胃空肠吻合术
A.30%~40% B.60%~70% C.40%~50% D.70%~80% E.50%~60%