✔ 最佳答案
不是所有聾人也啞的,是天生聾的人才啞,因為他們並無聽過人說話,所以大腦沒有這類訊息,不能用出天生的說話能力。聾人不一定是啞的!
2006-12-18 20:31:51 補充:
Not all the deft gay can't say. Only the people who is daef when he was born because they have never heard saying. their doesn't get this kind of signal so that they can't speak but they still can scream sometime accidenitaly.