一个执迷不悟的人是个全聋的演说家。
人们通常理解全聋的概念，即是根本听不到任何声音。
People generally understand the concept of total deafness, that is, the inability to hear any sound at all.
生理上全聋的人，他的听力行为始终是一致的：对声音他们不作反应-就这样。
The auditory behavior of people who are completely and physiologically deaf is consistent: when sound occurs they do not respond - period.
方法：对4例全聋者人工耳蜗植入术后进行1.0～1.5年的听觉语言训练。
Method:The four cases by cochlear implanted have rehabilitated with hearing speech for 1.0~1.5 years.
结论大前庭导水管综合征病儿初次发病时一般为双侧中重度以上感音神经性听力损失，随后波动性听力逐渐下降直至全聋。
ConclusionGenerally, moderate or severe neurosensory hearing loss of both ears occurs at the initial episode of LVAS and aggravates gradually to total deafness.
结论大前庭导水管综合征病儿初次发病时一般为双侧中重度以上感音神经性听力损失，随后波动性听力逐渐下降直至全聋。
ConclusionGenerally, moderate or severe neurosensory hearing loss of both ears occurs at the initial episode of LVAS and aggravates gradually to total deafness.
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