Extinguishing Class D Fires Most class D fires occur when the combustible metals are in dust, flake, shaving forms or molten. A class D fire cannot be extinguished by water as it produces hydrogen at high temperatures and eventually an explosion occurs and spreads of fire further. It is, the...
The lift is dangerous in a fire because D . A. it is open B. it may keep you outside C. it is too small D. it may go wrong an d keep you inside54. How many tips(提示) does the passage have about fire? B A. Three. B. Four. C. Five. D. Six.55. Which of the ...
"A is to B what C is to D" 这个句型在英语中用来说明两个事物之间的相似关系。以下是一些不同话题语境中使用这个句型的例子: 科技与发明: "The internet is to information what the wheel is to transportation." 文学与艺术: "Shakespeare is to ...
Fire can start in forests, homes and schools. It is very dangerous. What should we do when there is a fire? We should go outside quickly. And we have a fire drill at school every year.A fire drill is not a real fire. It helps us prepare for(为……准备) a real fire. This map...
Fire is a rapid chemical reaction known as oxidation. 火是一种快速的氧化化学反应。 Inside a fire, oxygen molecules break bigger molecules apart into carbon dioxide and water vapor. 在火中,氧分子将更大的分子氧化成二氧化碳和水蒸汽,火中的所有光和热都来自于含碳的大分子同氧气的结合。 All the...
myself Fat FIRE until my passive income reached $200,000 a year in 2017. My ultimate goal is to earn $400,000 a year in passive income, which would definitely put me in the Fat FIRE camp. It's expensive to live in San Francisco, especially with two kids and a stay-at-home wife!
Animals have a very good sense(感觉)of smell.T hey often get away from buildings before people.(1).T he passage tells us that we canin a fire.A.use the liftB.try to put out the fire ourselvesC.open the hot door and go outD.shout as loudly as possible(2).T he lift is ...
53. What will happen when food aid is offered at a price? A) The rich will become richer and the poor poorer. B) More people will be willing to join in the effort. C) More food will be made available to the needy. D) The relief effort will be rendered less sustainable. ...
【题目】Fire is dangerous. What should we do t o protect ourselves from the fire? T he followi ng is some ___ for you.How to prepare for a fire?·Put fire extinquishers (灭火器) in the hou se. T hey can help to the fire in a sh ort time. Everyone should know how to use...
No one else, no matter how much we talk or cry, can pull us through the anxious hours of soul repair and growth. It is our own fire within that needs rekindling, guarding against the winds that would blow it out and leave us dark, cold and helpl...