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.胃大部切除术
C.三腔二气囊管压迫
D.迷走神经干切断+半胃切除术
E.高选择性迷走神经切断术
参考答案:B
内角和等于外角和3倍的多边形的边数n=[ ]
A.7
B.8
C.9
D.10
When we got to the top of the Mountain Tai, we nearly____. [ ]
A. under our breath
B. lost our breath
C. caught our breath
D. out of breath