在击实试验中,轻型击实为分三层击实,而重型击实则为分五层击实
肺结核病的全身中毒症状有() ["盗汗","咯血","低热","乏力","咳嗽"]
钩端螺旋体病的病原治疗应首选是() ["庆大霉素","青霉素","四环素","链霉素","氯霉素"]
下列抗结核杆菌作用最弱的药是() ["利福平","链霉素","吡嗪酰胺","对氨水杨酸","乙胺丁醇"]
临床上常用的治疗泌乳素型垂体腺瘤的药物是() ["泼尼松","甲状腺素","多巴胺","溴隐亭","卡马西平"]
对于不易通风换气的受限空间,或作业场所空气中氧气浓度低于()时,作业人员必须配备并使用()或()等保护器具,严禁使用。