—Did you enjoy yourself on the beach ?

—        .

A．Yes , it was very beautiful

B．I like it very much

C．Well , it depends

D．Oh, I was on top of the world

低位肛瘘宜采用
蹄铁型肛瘘的治疗宜采用
高位单纯性直瘘宜采用

A.肛瘘切开术

B.肛瘘挂线疗法

C.肛瘘外口扩大术

D.药物保留灌肠治疗

E.肛瘘部分切开+肛瘘挂线术