应急照明、道路照明灯具的端电压不宜低于其额定电压的()。 ["85%","90%","93%","95%"]
对不孕症患者进行有关卵巢功能的检查中,下列不必要的项目是() ["阴道细胞学检查","宫颈黏液涂片检查","基础体温测定","刮取子宫内膜活检","腹腔镜检查"]
常用钙拮抗药中,"减慢心率的钙拮抗药"属于() ["硝苯地平","氨氯地平","尼莫地平","维拉帕米","氟桂利嗪"]
当突发公共事件中受害者人数较多,应急干预队伍无法基本满足相应的心理危机干预服务时,由专家组在()小时内作出请求援助。 ["5","6","7","8"]
来曲唑主要用于() ["抗血栓","抗肿瘤","强心药","抗真菌","调血脂药"]
触电死亡事故致命电流较()。