移动式配电箱、开关箱中心点与地面的相对高度可为()。
A.0.3m
B.0.6m
C.0.9m
D.1.8m
参考答案:C
—Mike, can you never let others know what I have said?
—Don’t worry. I’ll keep the
A. secret B. money C. grade
干粉灭火系统备用灭火剂的储存容器可不与系统管网相连。()