--- What should I wear to attend Mary’s birthday party?

--- Dress       you like.

A．what

B．how

C．whatever

D．However

急性化脓性腹膜炎的常见原因应除外（）

A.腹腔内脏器穿孔

B.损伤引起的腹壁或内脏破裂

C.血源性感染

D.手术污染

E.吻合口瘘