问题
问答题
放在热汤中的铁勺，勺把儿并没有在汤中，过一会儿也很烫手，这是为什么？
答案
这是热传递的结果，勺头在热汤中，它的温度高，内能沿着勺子从勺头传递到勺把上，使勺把的内能增大,温度升高。
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放在热汤中的铁勺，勺把儿并没有在汤中，过一会儿也很烫手，这是为什么？
这是热传递的结果，勺头在热汤中，它的温度高，内能沿着勺子从勺头传递到勺把上，使勺把的内能增大,温度升高。
| 阅读匹配。 | |
| Someone says, "1_______" But I think time is even more important than money. Why? Because when money is spent, we can get it back. However, when time is gone, it'll never return. 2_______ It goes without saying that the time is usually limited (有限的). Even a second is very important. 3_______ But it is a pity that there are a lot of people who do not know the importance of the time. They spend their limited time smoking, drinking and playing. 4_______ In a word, we should save time. 5_______ Remember we have no time to lose. | |
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