A.最常見(jiàn)的原發(fā)部位是內(nèi)聽(tīng)道段前庭神經(jīng)的神經(jīng)膜細(xì)胞(Schwann細(xì)胞) B.約2/3來(lái)自前庭上神經(jīng) C.1/3來(lái)自前庭下神經(jīng) D.起源于耳蝸神經(jīng)和面神經(jīng)者罕見(jiàn) E.以上均正確
A.1%~5% B.5%~10% C.10%~15% D.15%~20% E.2U%~3U%
A.40%~50% B.50%~60% C.60%~70% D.70%~80% E.50%~90%