A.感音性耳聾; B.傳音性耳聾; C.神經(jīng)性耳聾; D.骨傳導(dǎo)減弱
A.由于眼球前后徑過(guò)長(zhǎng)所致; B.近點(diǎn)較正常眼近; C.因折光力超過(guò)正常所致; D.遠(yuǎn)點(diǎn)移遠(yuǎn)
A.16-2000Hz; B.16-20000Hz; C.1000-3000Hz; D.4000-6000Hz