There is no      in trying to persuade him to change his mind, for he never follows the advice of others.

A．doubt

B．point

C．difficulty

D．wonder

治疗急性梗阻性化脓性胆管炎最常用的有效手术方式是

A．胆囊造口术

B．胆囊切除术

C．胆总管切开、T管引流术

D．胆管空肠吻合术

E．胆囊空肠吻合术