题目内容

空洞是指( )

A. 肉芽组织取代坏死组织的过程
B. 深部组织坏死穿出皮肤形成的病理性盲管
C. 皮肤或黏膜组织坏死脱落形成的缺损
D. 空腔脏器与体表之间的病理性管道
E. 内脏器官坏死液化后,经自然管道排出体外所残留的空腔

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