My train arrives in Shanghai at 10 this morning . The plane I would like to take from there

      by then

A．is leaving

B．will have left

C．has left

D．will leave

男性，30岁，上腹突发刀割样疼痛，很快波及全腹，体温39℃，腹部呈板状，有明显压痛、反跳痛和肌紧张，肝浊音界消失，肠鸣音消失。最可能诊断是（）

A.急性化脓性胆囊炎

B.胃十二指肠溃疡穿孔

C.急性阑尾炎穿孔

D.急性出血性胰腺炎

E.急性梗阻性化脓性胆管炎