He arrived at the station, ______that the bus_____ off .

A．finding; had

B．found; had

C．only to find; had been

D．only to find; has been

患者，女性，42岁，晚餐后4小时突起中上腹剧痛，既往有胆石症病史。查体：皮肤、巩膜黄染，腹部微胀，中腹带状压痛，可疑反跳痛，右肋下扪及肿大的胆囊，并有明显触痛。实验室检查血清淀粉酶600U/L（Somogyi法）。入院后黄疸进行性加重，最关键的治疗是（）

A.输液

B.解痉、止痛

C.禁食

D.抑制或减少胰液分泌

E.手术解除胆管梗阻