钢筋检验的一般规定有哪些?(新规范)
做人工呼吸时胸外按压与吹气比例是() ["15:1","10:1","30:2","30:4","20:2"]
电化学发光免疫分析(ECLIA)常采用的标记物是() ["吖啶酯","HRP","ALP","三丙胺","三联吡啶钌"]
数值孔径NA是光纤的一个重要参数,以下说法不正确的是() ["数值孔径反映了光纤的集光能力","光纤的数值孔径与其几何尺寸有关","数值孔径越大,光纤与光源的耦合越容易","数值孔径越大,光信号的畸变也越大"]
《医疗事故处理条例》将医疗事故分为() ["二级","三级","四级","五级","六级"]
试述油罐容量及个数的确定?