问题
判断题
在电厂中实际能够利用的煤的发热量是低位发热量。
答案
参考答案：对
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在电厂中实际能够利用的煤的发热量是低位发热量。
参考答案：对
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| Accidents can happen indoors. Many young children get 1 when playing in their homes. 2 do these accidents happen? A housewife is a 3 person. She has to do most of the work in the home. Sometimes she is 4 . She puts a pot of hot water on a table. A little child can reach it. When she goes out of the room, the child reaches up and 5 the pot. The hot water spills over him and hurts him. Then the child must 6 to hospital at once. Many other accidents happen. Kerosene heaters (加热器) are sometimes 7 by children playing in the home. The kerosene spills out of the heater and burns. Soon the whole room is burning. All things that can cut are dangerous. Sharp knives and scissors should 8 out of reach of children. Small children should not be allowed to 9 them. Electricity is always dangerous. Electricity can be used for heating and cooking, but it can also kill us! You should never touch any electric heaters or wire if it 10 . Medicine makes us 11 or kill us! Sometimes grown-up people are 12 . They leave medicine in places where children can reach it. They find it and eat it. Then they get very ill. Perhaps they die. The skins of bananas, oranges and other 13 are very slippery (滑的). You 14 throw them on the ground. If you do, someone may step on them and fall down. They may break a leg or an arm. To stop accidents, please be 15 in everything you do. | ||||
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