单选题:A类火灾场所严重危险等级场所,每具灭火器的最小灭火级别应为( )。 题目分类:消防安全技术实务 题目类型:单选题 查看权限:VIP 题目内容: A类火灾场所严重危险等级场所,每具灭火器的最小灭火级别应为( )。 A.3A B.4A C.4B D.8B 参考答案: 答案解析:
机械加压送风的防烟楼梯间的余压应为( )Pa。 机械加压送风的防烟楼梯间的余压应为( )Pa。A.20~30 B.30~40 C.40~50 D.50~60 分类:消防安全技术实务 题型:单选题 查看答案
泡沫灭火系统按系统结构一般分为( )。 泡沫灭火系统按系统结构一般分为( )。A.固定式泡沫灭火系统 B.半固定式泡沫灭火系统 C.移动式泡沫灭火系统 D.全淹没灭火系统 E.局部应用灭火系统 分类:消防安全技术实务 题型:单选题 查看答案
Why didn’t her mother tell her that she was anonymous giver Why didn’t her mother tell her that she was anonymous giver of gardenia?A.Becaus 分类:消防安全技术实务 题型:单选题 查看答案
Which of the following is NOT mentioned by the author as a l Which of the following is NOT mentioned by the author as a likely giver of the f 分类:消防安全技术实务 题型:单选题 查看答案