计算题：某生产车间有一台换热器用水来冷却，流量为100kg/h的高温气体，使其从353K冷却到313K，冷却水的进口温度为283K，出口温度为293K，试求单位时间内冷却水吸收多少热量和冷却水的用量？（设高温气体比热容为1.85kJ/（kgK），水为4.18kJ/（kgK），热损失可忽略。）
参考答案：
冷却水吸收热量为2055W。
冷却水用量为176.9kg/h。
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| In the world today, all of the people need recreation (消遣). We 1 work all the time if we are going to keep healthy and enjoy life. Everyone has his own way of 2 . Perhaps one of the most popular forms 3 to take part in sports. There are team sports, such as basketball and football. There are 4 individual (各人的) sports, such as swimming and running. Skating and mountain climbing are the most popular forms of recreation for people who 5 to be outdoor. Not everyone who enjoys 6 likes to take part in them. Many people like 7 them on TV or listening them on the radio. So many people like some forms of 8 recreation, such as watching TV, singing and dancing. It doesn't matter 9 we like indoor recreation or take part in outdoor sports. It is important for everyone to 10 from time to time, and enjoy some forms of recreation. |
| ( )1. A. can ( )2. A. retiring ( )3. A. is ( )4. A. too ( )5. A. hate ( )6. A. culture ( )7. A. looking at ( )8. A. online ( )9. A. that ( )10. A. relax | B. can't B. living B. are B. also B. dislike B. practice B. seeing B. worldwide B. whether B. work | C. must C. sighting C. was C. even C. like C. sports C. watching C. outdoor C. when C. study | D. wouldn't D. relaxing D. were D. ever D. follow D. programs D. checking D. indoor D. although D. dream |