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nhibecb
2 năm trước
Hỗn hợp khí clo và khí hidro xảy ra phản ứng mạnh khi bình chứa hỗn hợp khí :A.đặt trong bóng tối ; B.để trong bóng râm ; C.được chiếu sáng trực tiếp ;D. Ở nhiệt độ thấp
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There are 5 mistakes ...... Find and correct them Every year, there are millions of accidents in our homes. Many poeple die each year from these accidents. Other poeple send much months in the hopital. Many people fall when they try to reach for things in high places. They fall because they stand on the tables or chairs. Never stand on a chair or table. Many people fall on things on the floor, so never leave toys or shoes on the floor who people walk. Fires kill many people in their homes each year. There are more fires in the home of smokers. Some people drop burnt cigarettes into garbage cans. They may start a fire in the garbage cans. In a safe home, people don't keep old newspapers, clothes and furniture. It is easy for these things to burn. What should you do if there is a fire in your home? You and your family should get out of the house quick. Do not try to get anything with you. After you leave the house, call a fire department from your neighbor's house. Firemen will come to put out the fire. Electrical appliances are dangerous for children to use. It is easy to get an electric shock if your hands are wet. Try not using electrical appliances in the bathroom. Take a walk through your home and look at each room. You can learn to give your family a safer home to live in

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