胆道疾病首选的诊断方法是()。
A.口服胆囊造影
B.静脉胆道造影
C.B超
D.内镜逆行性胰胆管造影
E.经皮经肝穿刺胆道造影(PTC.
参考答案:C
---Which sport has the most expenses______training epuipment, player’s personal epuipment and uniform?
---- Football, in my view.
A.In face of
B.in terms of
C.in case of
D.as a consequence of
在双代号网络图中,( )表示工作的开始。
A.实箭线B.虚箭线C.实箭线的箭头节点D.实箭线的箭尾节点