The estimated of congenital bilat - eral hearing loss is 0.17 % and of unilateral hearing loss 0.38 %.
雙耳聽障者均于3個月大時,開始接受廳語復(fù)健.
互聯(lián)網(wǎng)
It'sense d a min eral called hematite that offen forms under wet conditions.
它還發(fā)現(xiàn)了被稱為赤鐵礦的礦石的存在,這種礦石通常是在潮濕條件下形成.
互聯(lián)網(wǎng)