A.無(wú)噪聲,聽(tīng)力暫時(shí)下降
B.噪聲過(guò)強(qiáng),接觸時(shí)間長(zhǎng),引起的不可逆聽(tīng)力損失
C.無(wú)噪聲,聽(tīng)力永久下降
D.脫離強(qiáng)噪聲環(huán)境,聽(tīng)閾恢復(fù)正常
E.噪聲過(guò)強(qiáng),接觸時(shí)間短,聽(tīng)力暫時(shí)下降
A.手術(shù)
B.化療
C.放療
D.術(shù)后放療
E.術(shù)后化療