突发公共卫生事件的确认、分级,由()组织实施 ["基层医疗机构","当地镇政府","当地卫生行政部门","当地县政府"]
下列向量中的概率向量是() ["(0.1,0.4,0,0.5)","(0.1,0.4,0.1,0.5)","(0.6,0.4,0,0.5)","(0.6,0.1,0.8,-0.5)"]
秦汉时期,承战国深衣式,西汉早期多见而东汉时渐少的服式是() ["直裾袍","曲裾袍","司服","深衣"]
对于单项重合闸,以下说法正确的是()。
设备内照明必须使用≤48V的安全灯。
在中介购房如对购房价格有疑问如何处理?