几个月以前，他丈夫遇上单耳突发性耳聋。
Some months ago, her husband experienced a sudden profound hearing loss in one ear .
目的通过给单侧聋耳配戴助听器后对健侧耳影响的客观观察，探讨单侧耳聋配戴助听器的必要性。
Objective To investigate the necessity of wearing hearing aid for patients with unilateral hearing loss by detection of DPOAE the normal ear.
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