奶奶听力下降，配助听器有效果吗？听其他戴过的人说助听器不好戴着要响是怎么回事？成都哪里可以配？_百度知道老人耳朵不好，经常发脾气。巴中哪里助听器比较好？_百度知道我家叔叔耳朵不好，要大声叫他才能听得见，我叔叔想配个助听器_百度知道Error: Unable to find site's URL to redirect to.
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