胃溃疡大出血最主要的治疗方式是
A．奥美拉唑静脉点滴
B．胃大部切除
C．三腔两囊管压迫
D．肝叶切除术
E．高选择性迷走神经切断
参考答案：B
反思性实践
Insurance is to be ( ) by the seller when a deal is concluded on CIF basis.
A．covered
B．taken
C．made
D．done
