十二指肠溃疡合并大出血可采用
A.胃大部切除术B.高选择性迷走神经切断术C.胃大部切除加淋巴结清扫术D.胃肠吻合术E.全胃切除术
参考答案:A
项目的启动过程通常不由谁来完成?()
A.高级管理层
B.项目集经理
C.项目经理
D.项目组合经理
The probability of each of three independent events is shown in the table below. What is the probability of A and C occurring, but not B()
A.15%
B.42%
C.8.9%.