急性扁桃体炎的并发症有() ["A．咽旁脓肿","B．颈淋巴结炎","C．脓毒血症","D．心肌炎","E．支气管炎"]
镜面反射通常出现在下列哪一组织周围() ["A．肝脏","B．胆囊","C．脾脏","D．膈肌","E．胰腺"]
气管切开术后护理应特别注意() ["A．保持气管套管通畅","B．每4～6小时清洗消毒内套管一次","C．严格无菌操作，吸痰导管一用一消毒","D．痰液粘稠时可给予气道雾化吸人","E．贮液瓶内应先放入250毫升消毒液"]
镜面反射发生在下面哪种情况下() ["A．频率的波长太低","B．引起反射的物质太小","C．反射物与波长相比太大","D．入射角与反射角至少相差30度","E．以上都不是"]
镜面反射() ["A．当界面大于波长时发生","B．当界面小于波长时发生","C．由于界面小于3mm而发生","D．与入射角无关","E．以上都不是"]
与眼眶外壁相邻()与眼眶上壁相邻()与眼眶下壁相邻()与眼眶壁内上方相邻()与眼眶内壁相邻()
