B. Once a day. C. Once a week. D. Once a month. 相关知识点: 试题来源: 解析 C 正确答案:C 解析:细节题。题干意为:“火灾演习多久一次?”从文章第二部分“fire drills are carried out every Tuesday between 10:00 and 10:15”可知,火灾演习时间为每星期二上午十点至十点一刻,所以正确答...
A long time ago, China has already had an earthquake prevention organization, equivalent to the current earthquake bureau. In the Eastern Han Dynasty, scientist Zhang Heng also invented the "seismograph", which pushed Chinas scientific cause to the peak. And we should study Zhang Hengs scientific ...
When the teacher was coming to me,suddenly the fire alarm went off.We all rushed out of the door and waited outside. As I stood in the warm sunshine,I realized how stupid I was.I knew my mom and dad would still love me(5) C I didn't get good grades.When...
Learn how to use a fire extinguisher by following four easy steps, and how to maintain it to ensure it works as expected.
题目A:You look worried.What's the matter?B:I'll have a ping- pong match against Mike tomorrow.I think I'll(1) it because he is much better than me.A:Don't worry too much.Let's play a game.Look,is this glass of milk half-full or half-empty?B:H...
Hence, the following temporal constraint is necessary because it implicitly defines for how long an event is useful (e.g: $eventA after[0,1m] $eventB means that $eventB is useful for 1 minute). Of course, this example assumes that the engine is running in STREAM processing mode and ...
Does the vehicle have a two to four-digitPIN codethat can disable the alarm? You should also locate components that might be leveraged to disengage the alarm. For instance, open the fuse box and open the hood to identify the battery location. This way you are not searching for the first...
It's a pretty big smoke detector. It is not very sensitive. There would have to be a LOT of smoke before the alarm would go off -- the smoke would have to be thick enough to completely block out the light. It takes quite a bit of smoke to do that. ...
( 1996 ), “ Fire alarm in a public building: how do people evaluate information and choose evacuation exit? ”, Report 3082, Department of Fire Safety Engineering, Lund University, Sweden.Bemthorn L. e Frantzich H., "Fire alarm in a public building: how do people evaluate informat...
nd over will make the fire go out. Put a blanket (毯子 ) around you to keep air away from the fire thatmay still be on you. There are many possible causes for fires. A wise family is ready alt the time. If there is a fire don't forget to call 119 for help. l. What does ...