属于食管异物症状的是() ["A.吞咽时疼痛","B.吞咽困难","C.刺激性呛咳","D.呼吸无困难","E.发热"]
气管、支气管疾病的常见症状不包括() ["A.咳嗽","B.吞咽困难","C.喘鸣","D.呼吸困难","E.呕吐"]
水下30m深处的压力相当于()温度为0℃,纬度为45°的每平方厘米的海平面上所承受的压力为() ["A.0.4MPa","B.<24V","C.0.13MPa","D.表压","E.标准大气压"]
常位于中纵隔的病变是() ["A.胸腺瘤","B.神经纤维瘤","C.支气管囊肿","D.皮样囊肿","E.畸胎瘤"]
试述氧舱火灾应急处理原则。
何谓加压时间()什么是稳压时间()什么是减压时间()