关于重链病的错误叙述() ["血清电泳可见M蛋白区带","重链病一般无本-周蛋白尿","易反复感染","属一种良性病变","常见的是γ、α和μ型重链病"]
外照射防护的一般措施有() ["时间防护","距离防护","屏蔽防护","以上都是","以上都不是"]
钴铬钼合金的最显著的特点是() ["价格低","耐蚀性好","耐磨性好","生物相溶性好","耐疲劳性好"]
连续X射线的最强波长是最短波长的() ["0.5倍","1.5倍","2.5倍","2倍","3倍"]
下列哪项不是人工全膝关节置换术的并发症() ["深静脉血栓形成","感染","腓总神经麻痹","假体无菌性松动","骨性关节炎"]
妊娠期贫血的诊断标准不同于非妊娠妇女,我国采用的标准是血红蛋白<()g/L,红细胞计数<()×1012/L,或血细胞比容<()。缺铁性贫血为小细胞低色素性贫血,红细胞平均体积(MCV)<()fl。血清铁小于()μmol/L。