A.骨迷路 B.鼓室 C.鼓膜 D.咽鼓管 E.膜迷路
A.90% B.80% C.70% D.60% E.50%
A.耳大神經(jīng) B.枕小神經(jīng) C.舌咽神經(jīng) D.迷走神經(jīng)的耳支 E.下頜神經(jīng)的耳顳支