Were you born 1990? [ ]
A. at
B. from
C. with
D. in
答案:D
由于消防水泵在整个火灾延续时间内都存在启动的可能,所以消防水池的水位在整个火灾延续时间内都应保证消防水泵的自灌式吸水。()
一、二级列检作业场的技检时间是如何规定的?