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正常耳朵是多少贝分

更新时间: 2020-11-04 00:00:00     

国际卫生组织(WHO-1997)将听力损失分级如下:平均听力损失小于等于25分贝为正常。平均听力损失介于26~40分贝为轻度听力损失;平均听力损失介于41~60分贝为中度听力损失;平均听力损失介于61~80分贝为重度听力损失;平均听力损失大于等于81分贝为极重度听力损失。

关键词: 正常 耳朵 多少

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