It is used for protecting firemen from smoke

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• 补全对话：who does best in protecting the in you class?mr recyclingwhat does he ofean he loves the clothes his mother for him .his hat is made from waste bags.his school bag is made of old that were too small for him and he used to wear his father's .good .where does he live?he lives in a house of what do you mean you mean he livbes in trash?no .he lives in a house that he out of trash.the stuff to be called trash,but now it's called material.great.he is r
• How __________ London which used to suffer from smoke and fog became so clean?did about come led to 选哪个,
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• 英语翻译In addition,The WHO and the US.government's Environmental Protection Agency have joined forces to support pilot projects protecting children from second hand smoke in China,Vietnam,Poland,and Latvia.And the World Health Organization's western hemisphere branch,the Pan American Health Organization,launched a "Smoke-Free Americas" campaign five years ago to provide technical help to regional governments to reduce passive smoking exposure.The U.S.Sur
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• Breathing equipment is used (A to B with C for D at) protecting firemen from smoke.
• 用30个词概括一下下面的英语短文.谢谢There was a big fire in one office building in our neighborhood at about nine4 o'clock last night. Many firemen and fire engines came. In the beginning, we saw flames with thick black smoke coming out from the sixth floor; and we also heard the explosion of the gas tank mixed with the noisy sounds from shattering windows. Soon the fire spread one by one to the floors above, and finally reach the top floor. Some aluminum window frame
• 英语翻译根据给出的首字母填空,使其内容通顺.Before windows were used ,old house in Northern Europe and Britain were very d__1__.Their great rooms were high with only one h___2__ to let the smoke out from cooking fire .As time went on ,people began to make the holes b__3__ in order to have more light and air in their homes.The first English window was just a small opening in the wall .It was cut down long to let in as much light as p__4__,and narrow,to keep out the bad weat
• It is used for protecting firemen from smoke
• 哪位好哥哥或好姐姐帮我看看我的作业,I am used to travelling by air.Last Wednesday,I flew to Europe from China.The plane took off on time.A passenger who has never been by air before threw a lighted cigarette into an air vent.Because he thought it was an ash tray.Almost immediately smoke rose up and covered the plane.A flight attendant told us that somewhere fired on.Everybody on board was panicked and we were curious to find out how the fire was put out,when the plane
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