单项选择题
A.deiaphragm B.superior portion of duodenum C.head of pancreas D.suprarenal gland E.pylorus
A.hepatic vein B.cyctic duct C.common bile duct D.left gastric vein E.celiac trunk
A.superior part of duodenum B.descending part of duodenum C.horizontal part of duodenum D.ascending part of duodenum E.duodenojejunal flexure