女性，49岁，近半年数次发生右上腹疼痛，恶心、呕吐，多为夜间睡眠后发作，并向右肩部放射，检查：肥胖体质，血压110/80mmHg，脉搏90次／分，右上腹轻度压痛，无腹肌紧张。

该患者最有可能的诊断是（）

A.高位急性阑尾炎

B.胆囊腺瘤性息肉

C.十二指肠溃疡穿孔

D.急性胰腺炎

E.胆囊结石

Jack ______ the bus as soon as it stopped; and then to his joy he met an old friend of his on that bus.

A．got on

B．got into

C．got off

D．got out of