消防泵房应急照明设备完好；设置在墙面的上部或顶棚；连续放电时间不小于（）min。
参考答案：20
— Were you caught in the heavy rain this morning?
— Yes, I was. _______ had I left home than it began to rain dogs and cats.
A．No sooner
B．Seldom
C．Hardly
D．Never
周围血象出现幼红、幼粒细胞的疾病是（）
A.急性红白血病
B.溶血性贫血
C.缺铁性贫血
D.再生障碍性贫血
E.血友病
