A.聽性腦干反應(yīng)測聽 B.純音測聽 C.聲導(dǎo)抗 D.言語測聽 E.音叉檢查
A.20% B.30% C.40% D.60% E.80%
A.A超 B.B超 C.M超 D.D超 E.多普勒