长期从事颜料工业的工人,其最可能的职业中毒是()。 ["铅中毒","汞中毒","钡中毒","苯中毒","四氯化碳中毒"]
决定血浆渗透克分子浓度(Posm)的主要因素是()。 ["Na+","Mg2+","K+","H+","Ca2+"]
男性,20岁,检查心率120/分,心电图示:PI,II,aVF直立,aVR倒置,P-R间期0.12s,下列哪项是正确的:() ["室性心动过速","房性心动过速","室上性心动过速","窦性心动过速","交界性心动过速"]
三度房室传导阻滞,如果阻滞发生在房室束分叉以下,其心室率常为:() ["60-100次/分","50-60次/分","10-20次/分","20-40次/分","160-220次/分"]
预激综合征最易引起的心律失常是() ["室性阵发性心动过速","心房颤动","心室颤动","心房扑动","室上性阵发性心动过速"]
皮肤肿瘤的发病与日晒有关的有:()()()。