Escaping a fire is a serious matter. Knowing what to do during a fire can save a life. It is important to know the ways you can use and show them to everyone in the family, such as stairways and fire escape, but not elevators. From the lower floors of the building, escape through windows is possible. Learn the best way of leaving by the window with the least chance of serious injury.
The second floor window is usually not very high from the ground. An average person, hanging by the fingertips will have a drop of about six feet to the ground. It is about the height of an average man. Of course, it is safer to jump a short way than to stay in a burning building.
Windows are also useful when you are waiting for help, be sure to keep the door closed before opening the window. Otherwise, smoke and fire may be drawn into the room. Keep your head low at the window to be sure you get fresh air rather than smoke that may have leaked(渗入) into the room.
On a second or a third floor, the best windows for escape are those which open on a roof. From the roof a person can drop to the ground more safely. Dropping onto cement(水泥地) might end in injury. Bushes and grass can help to break a fall.
Which of the following should not be used when trying to escape a fire?
A.windows.
B.elevators.
C.fire escapes.
D.stairways.
钢尺丈量时,得测温度,一般测空气温度,在水泥地坪上量,要测地面温度,不得差()℃。
A、2
B、0.2
C、±2
D、-0.2
护士小张,在给患者测体温时不小心将水银体温计摔碎在病房水泥地面上,小张的下列紧急处理措施错误的是()。
A、将患者转移到室外
B、开窗通风
C、打开室内所有热源,促进汞的快速消散
D、处理地面汞滴时应穿戴防护用品
E、如果有皮肤接触,立即用水冲洗
农村幼儿园用三合土铺的活动场地,就比水泥地省钱又安全,说明幼儿园环境创设要坚持()。
A、开放性原则
B、适宜性原则
C、环境与教育目标一致的原则
D、经济性原则