急性梗阻化脓性胆管炎最常见的梗阻原因是
A．胆道肿瘤
B．胆管结石
C．肝脓肿胆道出血阻塞胆管
D．急性胆囊炎胆囊肿大压迫胆总管
E．胆管狭窄
参考答案：B
—I’m sorry, I shouldn’t have been so rude to you.
—You ________ your temper but that’s OK.
A．have lost
B．had lost
C．did lose
D．were losing
星型拓扑结构
