水蒸气蒸馏是用来分离和提纯有机化合物的重要方法之一，常用于下列情况：（1）混合物中含 发布时间：2017-08-15 23:47 │ 来源：www.tikuol.com 题型：问答题 简答题 问题： 水蒸气蒸馏是用来分离和提纯有机化合物的重要方法之一，常用于下列情况：（1）混合物中含有大量的；（2）混合物中含有物质；（3）在常压下蒸馏会发生的有机物质。
题型：问答题 简答题 完形填空。 When I arrived in Hamburg Germany, my colleague who worked there arranged a welcome partyfor me in a 1 . We noticed a few customers including several old ladies, were having their meal. When a dish is 2 , the waiter would distribute the food for them, and they would 3 every bit of thefood on their plates. As I was hungry, my local colleague 4 much food for me. Since there were other things to do, wedid not 5 much time dining. When we planned to leave, there was still about one third of 6 food left.When we were leaving the restaurant, we 7 someone calling us. When the old ladies spoke to us in English, we understood that they were 8 about us wasting so much food. "We 9 for our food; it is none of your 10 how much food we left behind", my colleague told the old ladies. They got angry, and one of them 11 made a call to someone. After a while, an officer in 12 arrived. Upon knowing what had happened, he issued us a 50-euro 13 . The officer told us in a stern(严厉的)voice: "order 14 you can consume. Money is yours, 15 the resources belong to the society.You have no 16 for wasting them." Our face turned red. We all agreed with him in our 17 . My colleague took out a 50-euro note and repeatedly 18 to the officer. My colleague copied the fine ticket and gave a copy to each of us as a souvenir. We all 19 it toremind us that we should never be 20 .( ) 1. A. restaurant ( ) 2. A. cooked ( ) 3. A. desert ( ) 4. A. kept ( ) 5. A. save ( ) 6. A. undiscovered ( ) 7. A. appointed ( ) 8. A. curious ( ) 9. A. paid ( )10. A. matter ( )11. A. immediately ( )12. A. rags ( )13. A. award ( )14. A. how ( )15. A. but ( )16. A. ability ( )17. A. words ( )18. A. apologized ( )19. A. stuck ( )20. A. hopeful B. company B. served B. refuse B. sold B. spend B. undeveloped B. knew B. unhappy B. asked B. mind B. passively B. uniform B. food B. it B. and B. problem B. hearts B. accused B. broke B. grateful C. family C. gathered C. oppose C. ordered C. divide C. unconsumed C. realized C. nervous C. applied C. question C. excitedly C. fashion C. fine C. that C. or C. reason C. faces C. admitted C. kept C. merciful D. bank D. missed D. finish D. made D. find D. undetermined D. heard D. optimistic D. accounted D. business D. regularly D. dream D. souvenir D. what D. so D. power D. ears D. approved D. threw D. wasteful 查看答案