精馏塔的操作和塔效率的测定：写出本实验开始时的操作步骤。 发布时间：2019-08-28 16:24 │ 来源：www.tikuol.com 题型：问答题 简答题 问题： 精馏塔的操作和塔效率的测定：写出本实验开始时的操作步骤。
题型：问答题 简答题 完形填空。 A certain student passed all his examinations. Then he went to college to 1 his studies. There he wrote down his 2 for a course in English, but after the first 3 , he didn’t go to itany more. The English lecturer 4_this student was always absent (缺席的) and thought he had 5_to another course, so he was 6 when he saw the boy’s name on the list of students who wanted to take the English 7at the end of this year. The lecturer had 8 a difficult paper, which followed his 9 closely, and he was eager (热切的) to see 10 this student would answer the questions. He 11__the boy’s answers would be very bad, but when they 12 him and he examined them 13 , he was able to find only one small mistake in them. As this surprised him greatly, he 14 the paper repeatedly but still couldn’t find more than one mistake, so he 15 for the student to question him about it. When he came and sat down, the lecturer asked him, “I 16 you came to my first lecture and you’ve been absent from all the others. But I’ve examined your 17 carefully and I’ve found only one small mistake in it. I’m curious (好奇的) to know your 18 .” “I’m very 19 about that mistake,” answered the student. “After the examination, I 20 what I should have done. I would not have made that mistake if I had not been confused by your first lecture.” ( )1.A. value ( )2.A. questions ( )3.A. week ( )4.A. astonished ( )5.A. led ( )6.A. surprised ( )7.A. test ( )8.A. discovered ( )9.A. ideas ( )10.A. when ( )11.A. hoped ( )12.A. showed ( )13.A. carelessly ( )14.A. enjoyed ( )15.A. cared ( )16.A. promise ( )17A. lessons ( )18.A. wisdom ( )19.A. glad ( )20.A. realized B. continue B. advice B. lecture B. regretted B. devoted B. angry B. subject B. prepared B. senses B. what B. proved B. gave B. carefully B. kept B. called B. know B. paper B. experience B. proud B. understood C. improve C. problems C. meet C. noticed C. gone C. pleased C. note C. invented C. lectures C. why C. expected C. handed C. slowly C. did C. sent C. advise C. notebook C. method C. content C. remembered D. begin D. name D. sight D. believed D. changed D. unhappy D. course D. found D. texts D. how D. wished D. reached D. happily D. examined D. looked D. guess D. exercises D. explanation D. sorry D. suffered 查看答案