The story of ________ American South will be one of hope and success with some signs that ________ new, different South is coming out of its dark past.

A．the; a

B．an; a

C．不填; a

D．an; the

男性，30岁。2小时前劳动中突发上腹刀割样疼痛，迅速波及全腹。舟状腹，全腹膜刺激征，肝浊音界不清，肠鸣音消失。诊断是（）

A.阑尾穿孔腹膜炎

B.胃十二指肠溃疡穿孔腹膜炎

C.胆囊穿孔腹膜炎

D.绞窄性肠梗阻

E.急性出血性胰腺炎