用无泵型采样器采样时,适合的风速范围是() ["1~10cm\/s","10~500cm\/s","5~10m\/s","10~15m\/s","15~20m\/"]
在被置换管段末端取气样化验分折,当含氧量不大于(),通气置换合格。 ["20%","12%","2%","2.5%"]
中医学认为骨与关节结核的基本病因是() ["本虚标实","寒邪","湿邪","风邪","痰浊"]
多种溶血的特殊检查,下列哪一组是错误的() ["CoomBs试验阳性--自身免疫性溶血","Ham试验阳性--PNH","红细胞渗透脆性增高--遗传性球形细胞增多症","出现大量异常血红蛋白--血红蛋白病","蚕豆病--机体对蚕豆的变态反应"]
骨与关节结核在中医学中被称为() ["骨蚀","骨痈疽","骨痨","骨坏死","骨肿瘤"]
试述工作空间设计的一般原则?