问题
问答题 简答题
什么叫做能源？
答案
参考答案：
我们把能量的来源称为能源，它是能够为人类提供某种形式能量的白然资源及其转化物。换言之，自然界在——定条件下能够提供机械能、热能、电能、化学能等共种形式能量的自然资源叫做能源。
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什么叫做能源？
参考答案：
我们把能量的来源称为能源，它是能够为人类提供某种形式能量的白然资源及其转化物。换言之，自然界在——定条件下能够提供机械能、热能、电能、化学能等共种形式能量的自然资源叫做能源。
1. You mustn’t enter this part of school without p______________. 2. We have the Dragon Boat Festival in m________ of the famous ancient poet, Qu Yuan. 3. Let’s go shopping at that store because it’s selling everything at a d____________. 4. I suggest you c____________ a lawyer about these legal issues. 5. They are s_____________ jobs these days, but I’m afraid it’s difficult to find a good one. 6. He _____________(道歉) to the public for having cheated in the competition in June. 7. All these vegetables will be very good to our health if they are eaten ___________(生的). 8. The boy’s white shirt was marked up with ____________(斑点) of ink. 9. The students like Mr. Smith very much because he always ____________(结合) teaching with pleasure. 10. A friend in need is a friend ____________(真正；确实) |