第一次作业 (1)
[指导]几何光学第一次参考答案
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几何光学第一次作业第1题：一折射球面r=150mm ，n=1，n ’=1.5。
当物方截距分别为- 、-1000mm 、-100mm 、0mm 、100mm 、150mm 、200mm 时，求像方截距及垂轴放大率各为多少？解：由'''n n n n l l r--= 得像方截距为'''n l n n n r l=-+又因为''nl n lβ=所有当l = - 时，'l =450mm ，β=0当l = -1000mm 时，'l =643mm ，β=-3/7 当l = -100mm 时，'l =-225mm ，β=1.5当l = 0mm 时，'l =0mm ， β=1当l = 100mm 时，'l =50mm ， β=1/3 当l = 150mm 时，'l =150mm ，β=2/3 当l = 200mm 时，'l =180mm ，β=0.6第2题：在曲率半经r=200mm 的凸面镜前l= -1000 mm 处有一物高为y=100mm 的物体，求该物体经球面镜后所成像的位置和大小。
解：由'''n n n n l l r--=，令'1n n =-=得，'112l l r +=所以当r=200mm ，l= -1000 mm 时，'l =90.9mm ，则'l lβ==-0.091 'y y β== -9.1mm第4题：已知一个透镜将一物放大-3X 投影在屏幕上，当透镜向物体移近18mm 时，物体将被放大-4X ，求透镜的焦距。
解：因为f xβ=-所以根据题意有：3fx-=- ①418fx -=-+ ②解得物方焦距f = -216mm ，像方焦距'f = -f =216mm第2次作业第1题：某物镜由两个薄光组组成：f 1’=100mm ，f 2’=200mm ，d=0；在第一光组前x= —50mm 处有一物高为y=20mm的物体，求：（1）该物镜的焦距；（2）像的位置；（3）像高。
英语作业(1)
西北师范大学继续教育学院方通学校教学站2019级第一学期英语（第一次作业）专业英语姓名层次本科ⅠWord Building(1 10=10 POINTS)Directions: Fill in the blanks with the correct form of the words given in the brackets.1. We are greatly excited because the success of our team is really beyond expectation. (expect)2.The public hold the opinion that the only true punishment for murder is death.(punish)3. The world is in continous development every minute.(continue)4. After a long distance travel, most people are very tired, including me. (include)5.Our nature has been polluted by waste gases send off by many factories.(natural)6. Do you agree with his political view?(politics)7.I don’t know what present I should buy for her because she is so hard to please.(pleasure)8. We have kept up our friend ship for more than twenty years.(friend)9.Much improvement has been made in the safety devices of the factory.(improve)10. You have to do some physical exercises every day to keep healthy . (health)ⅡVocabulary and Structure (1 30=30 POINTS)Directions: Choose the best one from the four choices to complete the sentence.11. His friends ____ him for winning the first prize at the speech contest.( C )A. desireB. gatherC. admireD.struggle12.The table cloth has a ____ of red and white squares.( A )A. patternB. formC. styleD. way13.The guard is trying to ____ what happened in the accident to the police.( D )A. passB. devoteC. copyD. describe14.He did his best to win the girl’s ____ that he loved very much.( A )A. favorB. fondC. honorD. border15.His parents ______ the boy to do well in the entrance examination.( B )A. expertB. expectC. hopeD.express16.At first, she disliked biology very much, but ____ she began to take interest init.( D )A. properlyB. secondlyC. especiallyD. gradually17.I will tell you why the police were sent last night if you ____ not to tell others.( B)A. considerB. promiseC. understandD. permit18.The serious teacher became a(n) ____ of fear to all the students in the class.( C )A. materialB. viewC. objectD.order19.Are we going to ____ the sports meet because of the bad weather? ( C )A. get offB. take offC. put offD. keep off20.He is ____ of cooking so much that he wants to become an outstanding (出色的)cook.( B )A. finalB. fondC. desireD. favor21.Some supermarkets have ______ the prices of some of their commodities.( C )A. setB. lowedC. loweredD. lift22.Everyone was ______ at the sight of the man beating his own daughter.( A )A. shockedB. excitedC. connectedD.rewarded23.There is a layer of dust on the ______ of the desk in my room.( C )A. borderB. patternC. surfaceD. face24.The two small shops _______to make a large one.( C )A. connectedB. joinedC. combinedD. united25.She failed to _____ the final exam because of a serious cold. ( B )A. pastB. passC. crossD. across26.What is your _____ on school punishments for cheating in exams?( A )A. viewB. reviewC. effortD.support27.The tour guide______ the visitors in the hotel lobby.( C )A. collectedB. calledC. gatheredD.directed28.It is difficult for some people to ______ their situation in life. ( C )A. satisfyB. saveC. improveD.help29.Nurses _______themselves to the care of the sick.( A )A. devoteB. watchC. decideD.order30. One of the greatest_______ of life is conversation.( C )A. factsB.habitsC. pleasuresD. appearances31.Did you have any trouble ____ the office building? ( D )No, but I had a lot of difficulty ____ my work.A. to finding, onB. in finding, inC. to find, toD. finding, with32.____ from my mother, I decided to get in touch with her by telephone.( B )A. Hearing notB. Not hearingC. Not to have heardD. Ididn’t hear33.____ surprised me was ____ he couldn’t speak English at all.( D )A. That, thatB. What, whatC. Who, thatD. What,that34.He said that he ____ since five o’clock.( A )A. had been workingB. has been workingC. was workingD. could have been working35.He doesn’t look well, for he ____ for sixteen hours.( C )A. had workedB. was workingC. has been workingD. would have worked36.I hope you make yourself ____; otherwise I won’t be able to guess what youmean.( D )A. understandB. understandingC. be understandingD. understood37.How I wish that the bus ____ down on our way back home last night!( C )A. didn’t breakB. would not breakC. hadn’t brokenD.shouldn’t break38.He is ____ danger. Let’s lend him a helping hand.( A )A. inB. atC. withD. into39.The weather had cleared up so I suggested ____ picnic in the country.( B )A. we would have aB. having aC. to have aD. go to40.His teacher told him that he ____ translate the sentence word for word.( D )A. needed notB. doesn’t need toC. didn’t needD.needn’tⅢReading Comprehension (1 15=15 POINTS)Directions: There are 3 reading passages in this part. Each passage is followed by some questions or unfinished statements. For each of them there are four choices marked A, B, C and D. You should decide on the best choice.Passage 1Hotlines （热线）have become common in China. Some radio stations use hotlines to encourage the listeners to take part in the talk shows.That's a good idea. Yet, the fact is, some people do nothing but break the whole program.Some people know little about the topic（话题）under discussion. Sometimes they do not even know what the host(主持人)is talking about. So the host has to tell the caller what the show is about. Usually the caller will ask a few questions which express his hope and show his ignorance(无知).Then the host has to answer and explain —how silly this is ! It wastes a lot of time. It seems that some people phone the hotlines in fun. They just want to let the listeners hear them. They don't care what the topic is, whether they themselves are interested in or how silly they appear to be. I'm totally bored by those people. It's necessary for radio stations to improve the hotline programs. In my opinion,if a caller doesn't know what is going on, the operator should not let the caller take part in it.41.We know from the sentence “Some people do nothing but break the wholeprogram" that____.( B )A. radio stations use hotlines in a wrong wayB. it is a factC. it is a good ideaD. some people have unclear thoughts42. The host has to answer and explain, ____ . ( B )A. for the host works hardB. because of the caller's ignoranceC. for the host likes talking to the callerD. because of a lot of questions raised by the caller43. The passage doesn't tell us the idea ________ . ( C )A. that some listeners phone the hotlines in funB. that some people just want to be heard by othersC. that some people who don't care what the topic is must have realized that they appear to be sillyD. what the hotline programs are44. Which of the following is not true? ( D )A. Some people know little about the topic under discussion.B. Some people do not know what the host is talking aboutC. Some people do not know what the show is aboutD. The writer tells us that the host is silly.45. What should the operator do if a caller doesn't know what is going on in the writer’s opinion?( B )A. not to let the caller call the programB. not let the caller take part in the programC. let the caller express his ideaD. feel bored by the caller Passage 2Stage plays（舞台剧）, at first, seem a lot like films. Both use actors and dialogue and scenery. But if you try to make a film by setting up a camera in front of the stage, you will find it won’t work. A film made in this way will leave the audience（观众）cold. And even worse you’ll be wasting a powerful tool --- the camera.A stage is actually a box. One side of the box has been removed(挪开) so the audience can see what’s going on inside. The actors remain at a fixed audience. In the film, however, the camera can bring the audience up close and fix their attention on small but important things: a frightened look, a whisper, a trembling of hands.The camera offers the film maker freedom allowing him to move easily across barriers(界限) of time and space. He can show his action in real cities and on real farms. He can also use the camera to change the scene dozens of times in one film. No expert of the stage can do this.46. The main idea of the text is that ____ . ( C )A. stage plays and films are two different kinds of artB. it is always disappointing to turn play into filmsC. films have certain advantages(长处) over stage playsD. the camera has made film making easy and possible47. What is wrong with making a film by setting up a camera before the stage ? ____( D )A. Fewer and fewer people will go to the theatre.B. The audience cannot see what is going on the stage.C. The scene cannot be changed from time to time.D. The powerful camera cannot be made good use of.48. Which of the following can show that the camera is a powerful tool ? ____( B )A. It can move easily.B. It can make small things look larger.C. It can show things in the future.D. It can give us a scene of realism （真实）.49. In what way are plays different from films? ( B )A. Films often use real scenery while plays don’t.B. Films can show the past while plays can’t.C. Films change scenes while plays don’t.D. Film audience can move while play audience can’t.50. A suitable title for this text is ____.( A )A. Stage Plays and FilmB. The Powerful CameraC. Fewer Plays, More FilmsD. Less Waste, More Freedom Passage 3The human nose has given to the language of the world many interesting expressions. Of course, this is not surprising. Without the nose, we could not breathe or smell. It is the part of the face that gives a person special character. Cyrano de Bergerac said that a large nose showed a great man courageous, manly and wise.A famous woman poet wished that she had two noses to smell a rose! Blaise Pascal made an interesting remark about Cleopatra’s（古埃及王后）nose. If it had been shorter, he said, it would have changed the whole face of the world!Man’s nose has had an important role in his imagination. Man has referred to the nose in many ways to express his emotions. Expressions dealing with the nose refer to human weakness: anger, pride, jealousy（嫉妒）and revenge（报复）.In English there are a number of phrases about the nose. For example, to hold up one’s nose expressed a basic human feeling ---pride. People can hold up their hoses at people, things and places. The phrase, to be led around by the nose, shows man’s weakness. A person who is led around by the nose lets other people control him.On the other hand, a person who follows his nose lets his instinct（本能）guide him. There are a number of others. However, it should be as plain as the nose on your face that the nose in more than an organ for breathing and smelling.51. The passage is about ______. ( B )A. an organ, with which people can breathe and smellB. the nose, which gives different and useful expressionsC. the nose giving a person special characterD. interesting remarks about the nose made by some people52. From the passage we know ______. ( C )A. “Cleopatra’s nose” changed the whole face of the world indeed.B. Cleopatra had a strong will to change the whole look of the worldC. Cleopatra’s nose was not shortD. Cleopatra hoped that people would change the whole face of the world53. The nose expressed ______. ( C )A. some human weakness or otherB. people’s shortcomingsC. people’s different emotionsD. human feeling in bad sense54. A person who follows his nose ______. ( D )A. won’t take others’ adviceB. is easily controlled by othersC. is weak-mindedD. has will of his own55. How many expressions about the nose are mentioned in the passage? ( C )A. TwoB. ThreeC. FourD. FiveⅣCloze (1 20=20 POINTS)Directions: There are 10 blanks in the following passage. For each blank there are four choices marked A, B, C, and D. You should choose the one that best fits into the passage.Mrs. White gave music lessons at a school. She had a good voice, __56___ some of her high notes （高音）sounded like a door that _57__ oiling. Mrs. White knew her _58____ well, and took every _59__ she could find to practice these high notes. As she _60___a small house, she could not practice _61____ disturbing the rest of the family. So she usually went for long walks _62___the country road. But _63___ she heard a car or a person __64___ along the road, she stopped practicing. She did not want to be heard, _65___she was very shy.One afternoon, a fast open car came up behind her so _66__and so fast that she did not hear it _67___ it was only a few yards from her. She __68__ some of her highest and __69__ notes at that time. As the car passed, she saw an anxious _70____come over its driver's face. He stopped his car suddenly, _71_out and began to examine all the tires _72___. Mrs. White _73__to tell him what the noise he __74__really was. He got back into the and _75__ .(D)56. A. and B. as if C. besides D. except that(A)57. A. required B. wants C. requiring D. was(C)58. A. sound B. strength C. weakness D. music(B)59. A. place B. chance C. point D. time(C)60. A. had B. owned C. lived in D. stayed at (B)61. A. with B. without C. for D. not (D)62. A. through B. by C. near D. along (D)63. A. as B. since C. wherever D. whenever (C)64. A. step B. walk C. coming D. passed(B)65. A. then B. for C. not because D. but (A)66. A. silently B. quickly C. sudden D. slightly(A)67. A. until B. about C. while D. as(B)68. A. cried B. was practicing C. played D. wasshouting(C)69. A. excellent B. clearest C. most difficult D. easiest (A)70. A. expression B. feeling C. suffering D. condition (D)71. A. fled B. picked C. rushed D. jumped (C)72. A. slowly B. angrily C. carefully D. quickly (B)73. A. needn't B. didn't dare C. wanted D. pointed out(D)74. A. had done B. reported C. noticed D. had heard(A)75. A. drove off B. ran away C. driving out D. walked awayⅤTranslation (2.5 10=25 POINTS)Directions: Translate the following sentences into English.76.问题越困难，学生们就越不可能回答出来。
离散数学第一次作业(命题逻辑) 1、证明下列各式是重言式
离散数学第一次作业（命题逻辑）
1、证明下列各式是重言式 （1）（（P∧Q）→P）↔T Ù((⎤(P∧Q) ∨ P) ↔T Ù(⎤P∨⎤Q∨P) ↔T Ù（T∨⎤Q）↔T ÙT↔T 所以此式为重言式
（2）⎤（⎤（P∨Q）→⎤ P）↔F Ù⎤（（P∨Q）∨⎤ P）↔F Ù⎤（T∨Q）↔F Ù⎤T↔F ÙF↔F 所以此式为重言式
（b）P∨QÙ⎤ ⎤（P∨Q）Ù⎤ （P↓Q）Ù（P↓Q）↓ F
（c）P∧QÙ⎤(⎤P∨⎤Q) Ù⎤ ⎤ （⎤ P↓⎤ Q）Ù⎤ P↓⎤ QÙ （公式的最简等价式： （1）（（P→Q）↔（⎤ Q→⎤ P））∧R Ù（（P→Q）↔（P→Q））∧R ÙT∧RÙR
（2）P∨⎤ P∨（Q∧⎤Q） ÙT∨FÙT
（3）（P∧（Q∧S））∨（⎤ P∧（Q∧S）） Ù（（P∨⎤ P ）∧（Q∧S））） Ù T∧（Q∧S） Ù（Q∧S）
3、（1）与非运算符↑（又叫悉菲（Sheffer）记号）用下述真值表定义，
可以看出 P↑Q⇔⎤（P∧Q），试证明：
（a）P↑P⇔⎤ P； （b）（P↑P）↑（Q↑Q）⇔ P∨Q；
（c）（P↑Q）↑（P↑Q）⇔ P∧Q
证明：
（a）P↑P⇔⎤（P∧P）⇔⎤P
(b) （P↑P）↑（Q↑Q）⇔⎤P↑⎤Q⇔⎤(⎤P∧⎤Q) ⇔ P∨Q
高级英语一解析
高级英语第一次作业1. ( 单选题) Choose the answers that best explains the underlined word in the sentence. I thought that Hiroshima still felt the impact of the atomic cataclysm. (本题2.0分) A、bombardment B、explosion C、attack D、disaster 学生答案：D 标准答案：D 解析：得分：22. ( 单选题) Choose the answers that best explains the underlined word in the sentence. What about the bomb and the misery and humanity's most heinous crime? (本题 2.0分) A、frightening B、shocking C、poisonous D、evil 学生答案：D 标准答案：D 解析：得分：23. ( 单选题) Choose the answers that best explains the underlined word in the sentence. The meaning of these last words sank in, jolting me out of my sad reverie. (本题 2.0分) A、reverence B、recovery C、daydreaming D、reminiscences 学生答案：C 标准答案：C 解析：得分：24. ( 单选题) Choose the answers that best explains the underlined word in the sentence. The mayor of Hiroshima appeared more and more agitated. (本题 2.0分) A、impatient B、irritated C、upset D、excited 学生答案：C 标准答案：C 解析：得分：25. ( 单选题) Choose the answers that best explains the underlined word in the sentence. I stood on the site of the first atomic bombardment, where thousands upon thousands of people had been slain in one second. (本题 2.0分) A、slaughtered B、buried C、ruinedD、harmed 学生答案：A 标准答案：A 解析：得分：26. ( 单选题) Choose the answers that best explains the underlined word in the sentence. They are all dressed in national costume. (本题 2.0分) A、custom B、clothesC、customsD、clothing 学生答案：B 标准答案：B 解析：得分：27. ( 单选题) Choose the answers that best explains the underlined word in the sentence. She felt tired of his incessant complaining. (本题 2.0分) A、sharp B、continuousC、bitingD、pungent 学生答案：B 标准答案：B 解析：得分：28. ( 单选题) Choose the answers that best explains the underlined word in the sentence. Thanks to his map, I was able to find a taxi driver who could take me straight to the canal embankment... (本题2.0分) A、edge B、dam C、center D、entrance 学生答案：B 标准答案：B 解析：得分：29. ( 单选题) Choose the answers that best explains the underlined word in the sentence. At last this intermezzo came to an end, and I found myself in front of the gigantic City Hall. (本题2.0分) A、magnificent B、splendid C、impressive D、huge 学生答案：D 标准答案：D 解析：得分：210. ( 单选题) Choose the answers that best explains the underlined word in the sentence. ... we lurched from side to side in response to the driver's sharp twists of the wheel. (本题2.0分) A、slipped B、stumbled C、tripped D、swayed 学生答案：D 标准答案：D 解析：得分：211. ( 单选题) Choose the answers that best explains the underlined word in the sentence. The tall buildings of the martyred city flashed by... (本题 2.0分) A、marvolous B、mysterious C、tormented D、noisy 学生答案：C 标准答案：C 解析：得分：212. ( 单选题) Choose the answers that best explains the underlined word in the sentence. Hegrinned at me in the rear-view mirror and repeated "Hi!" "Hi!". (本题2.0分) A、smiledB、staredC、gazedD、laughed 学生答案：A 标准答案：A 解析：得分：213. ( 单选题) Choose the answers that best explains the underlined word in the sentence. The Japanese crowd did not appear to have the same preoccupations that I had. (本题2.0分) A、attention B、concentration C、misgivings D、thoughts 学生答案：D 标准答案：D 解析：得分：214. ( 单选题) Choose from the following choices the best one to complete the sentence. They are going to _____ that old building which looks shaky. (本题2.0分) A、demolish B、abolish C、accomplish D、polish 学生答案：A 标准答案：A 解析：得分：215. ( 单选题) Choose from the following choices the best one to complete the sentence. This monument was _____ in honor of the memory of Shakespeare. (本题2.0分) A、ejected B、elected C、erupted D、erected 学生答案：D 标准答案：D 解析：得分：216. ( 单选题) Choose from the following choices the best one to complete the sentence. But later my hair began to _____ and my belly turned to water. (本题2.0分) A、come up B、fall out C、curl up D、die out 学生答案：B 标准答案：B 解析：得分：217. ( 单选题) Choose from the following choices the best one to complete the sentence. He is a government employee _____ trade. (本题 2.0分) A、in B、on C、withD、by 学生答案：D 标准答案：D 解析：得分：218. ( 单选题) Choose from the following choices the best one to complete the sentence. Time marches _____ . (本题2.0分) A、on B、up C、off D、in 学生答案：A 标准答案：A 解析：得分：219. ( 单选题) Choose from the following choices the best one to complete the sentence. The event is over, but the memory lingers _____ . (本题2.0分) A、away B、onC、downD、up 学生答案：B 标准答案：B 解析：得分：220. ( 单选题) Choose from the following choices the best one to complete the sentence. I was experiencing a _____ of embarrassment. (本题 2.0分) A、twinge B、agonyC、confusionD、gust 学生答案：C 标准答案：A 解析：得分：021. ( 单选题) Choose from the following choices the best one to complete the sentence. Hiroshima is a city _____ every one around the world. (本题2.0分) A、familiar with B、new to C、familiar to D、related to 学生答案：C 标准答案：C 解析：得分：222. ( 单选题) Choose from the following choices the best one to complete the sentence. Little girls and elderly ladies in Kimonos _____ teenagers and women in western dress. (本题2.0分) A、faced to face B、mixed up C、rubbed bodies with D、rubbed shoulders with 学生答案：D 标准答案：D 解析：得分：223. ( 单选题) Choose from the following choices the best one to complete the sentence. These objects were found at the _____ of the crime. (本题2.0分) A、place B、pointC、siteD、scene 学生答案：D 标准答案：D 解析：得分：224. ( 单选题) Choose from the following choices the best one to complete the sentence. He was quite oblivious _____ the danger. (本题2.0分) A、to B、in C、of D、into 学生答案：C 标准答案：C 解析：得分：225. ( 单选题) Choose from the following choices the most suitable one to replace the unerlined word in the sentence. Elsewhere there is the carpet-market, with its profusion of rich colors, varied textures and regional designs. (本题 2.0分) A、confusion B、abundanceC、mixtureD、demonstration 学生答案：B 标准答案：B 解析：得分：226. ( 单选题) Choose from the following choices the most suitable one to replace the unerlined word in the sentence. It grows louder and more distinct, until you round a corner and see a fairyland of dancing flashes, as the burnished copper catches the light of innumerable lamps and braziers. (本题2.0分) A、glistening B、golden C、polished D、smooth 学生答案：C 标准答案：C 解析：得分：227. ( 单选题) Choose from the following choices the most suitable one to replace the unerlined word in the sentence. ... camels lie disdainfully chewing their hay... (本题 2.0分) A、proudly B、aimlessly C、relaxedly D、contemptuously 学生答案：D 标准答案：D 解析：得分：228. ( 单选题) Choose from the following choices the most suitable one to replace the unerlined word in the sentence. It is a vast, sombre cavern of a room, some thiryty feet high and sixty feet square. (本题2.0分) A、dark B、sad C、depressed D、spacious 学生答案：A 标准答案：A 解析：得分：229. ( 单选题) Choose from the following choices the most suitable one to replace the unerlined word in the sentence. The pressing of the linseed pulp to extract the oil is done by a vast ramshakle apparatus of beams and ropes and pulleys... (本题2.0分) A、ugly-looking B、old-fashioned C、shaky D、magnificent 学生答案：C 标准答案：C 解析：得分：230. ( 单选题) What figure of speech is used in the sentence? The din of the stall-holders crying their wares, of donkey-boys and porters clearing a way for themselves by shouting vigorously, and of would-be purchasers arguing and bargaining is continuous and makes you dizzy. (本题2.0分) A、symbolization B、euphermism C、personification D、parallelism 学生答案：D 标准答案：D 解析：得分：231. ( 单选题) What figure of speech is used in the sentence? It grows louder and more distinct, until you round a corner and see a fairyland of dancing flashes... (本题2.0分) A、simile B、metaphor C、humor D、hyperbole 学生答案：B 标准答案：B 解析：得分：232. ( 单选题) What figure of speech is used in the sentence? The camels are in superb condition _____ muscular, massive and stately. (本题 2.0分) A、metaphor B、alliteration C、persinification D、irony 学生答案：B 标准答案：B 解析：得分：233. ( 单选题) Choose from the following choices the best one to complete the sentence. Pull this handle to _____ machine _____ . (本题2.0分) A、set ... in motion B、pull ... away C、drive ... out D、put ... out 学生答案：A 标准答案：A 解析：得分：234. ( 单选题) Choose from the following choices the best one to complete the sentence. She wanted $ 100 for the dress, but I _____ her down to $80. (本题2.0分) A、turnedB、beatC、putD、pressed 学生答案：B 标准答案：B 解析：得分：235. ( 单选题) Choose from the following choices the best one to complete the sentence. The effects of the recession are _____ on every aspect of our lives. (本题2.0分) A、carryingB、impringingC、turningD、tackling 学生答案：B 标准答案：B 解析：得分：236. ( 单选题) Choose from the following choices the best one to complete the sentence. Blood was _____ out of the wound on his leg. (本题2.0分) A、rushing B、runningC、sprinklingD、oozing 学生答案：D 标准答案：D 解析：得分：237. ( 单选题) Choose from the following choices the best one to complete the sentence. She always _____ being punctual because she is afraid of being late for class. (本题2.0分) A、makes a point of B、makes a difference of C、puts off D、fears for 学生答案：A 标准答案：A 解析：得分：238. ( 单选题) Choose from the following choices the best one to complete the sentence. The shapes of the buildings in the city _____ into the night. (本题2.0分) A、died out B、withered away C、faded away D、melted into 学生答案：C 标准答案：C 解析：得分：239. ( 单选题) Choose the answer that best explains the underlined word in the sentence. In the food-market, you can buy everything you need for the most sumptuous dinner. (本题2.0分) A、delicious B、costly C、wasteful D、unpalatable 学生答案：B 标准答案：B 解析：得分：240. ( 单选题) Choose the answer that best explains the underlined word in the sentence. Then there is teh spice-market, with its pungent and exotic smells. (本题2.0分) A、poisonous B、harmful C、pleasing D、unusual 学生答案：D 标准答案：D 解析：得分：241. ( 单选题) Choose the answer that best explains the underlined word in the sentence. The teacher poured down his pungent remarks about my lateness. (本题2.0分) A、biting B、strong C、encouraging D、discouraging 学生答案：A 标准答案：A 解析：得分：242. ( 单选题) Choose the answer that best explains the underlined word in the sentence. As dawn broke, the outline of a building became distinct against the sky. (本题 2.0分) A、distinctive B、dim C、obvious D、splendid 学生答案：C 标准答案：C 解析：得分：243. ( 单选题) Choose the answer that best explains the underlined word in the sentence. One of the most picturesque and impressive parts of the bazaar is the copper-smith's market. (本题2.0分) A、annoying B、vivid C、pastoral D、striking 学生答案：D 标准答案：D 解析：得分：244. ( 单选题) Choose the answer that best explains the underlined word in the sentence. He may face persecution if he returns to his homeland. (本题2.0分) A、charge B、arrestC、punishmentD、oppression 学生答案：D 标准答案：D 解析：得分：245. ( 单选题) Choose the answer that best explains the underlined word in the sentence. You have to live in the city and understand its peculiarities. (本题2.0分) A、characteristics B、characters C、personalities D、disadvantages 学生答案：C 标准答案：A 解析：得分：046. ( 单选题) Choose the answer that best explains the underlined word in the sentence. The shop-keepers speak in slow, measured tones, and the buyers, over-whelmed by the sepulchral atmostphere, follow suit. (本题 2.0分) A、dismal B、happy C、joyful D、discouraging 学生答案：A 标准答案：A 解析：得分：247. ( 单选题) Choose the answer that best explains the underlined word in the sentence. Would-be purchasers argued and bargained vigorously. (本题 2.0分) A、future B、strong-willed C、determined D、possible 学生答案：D 标准答案：D 解析：得分：248. ( 单选题) Choose the answer that best explains the underlined word in the sentence. It's conceivable that she's been delayed at work. (本题 2.0分) A、possible B、enjoyable C、imaginable D、controllable 学生答案：C 标准答案：C 解析：得分：249. ( 单选题) Choose the answer that best explains the underlined word in the sentence. You pass from the heat and glare of a big, open square into a cool, dark cavern. (本题4.0分) A、 a weak light B、 a strong light C、looking in an angry way D、looking in an annoying way 学生答案：B 标准答案：B 解析：得分：4 返回高级英语第二次作业1. (阅读理解题)TEXT A A recent talk by games academic Jane McGonigal has re-ignited discussion on the role they play in our society. Traditionally, the debate has centered on whether they are “damaging”or merely “harmless fun”. But McGonigal is a games advocate. Her belief is that games are actually good for us. In order to solve the world’s most urgent problems, McGonigal says, we need to play more games because gaming creates people who are solution-focused, collaborative, optimistic and hard-working. This position is interesting, although open to the obvious critique that, unlike in-game challenges, real-world problems are not set up to be rewarding, interesting or even soluble, so framing them as a game is likely to lead nowhere. But there’s certainly potential in using game-like mechanics to encourage us to do things we otherwise might not want to: such as the S2H fitness monitor, which allows users to claim rewards for physical activity. The wider point ------ whether playing games actually improves any of our skills ---- is still open for debate and research. V arious studies have shown that playing certain games can increase players’ visual attention, fine motor sk ills and spatial reasoning. Intuitively, it is not surprising that practicing skills involving fast responses and complicated physical maneuvers might make us better at them. But is this a reason to play games, or a useful position for gaming advocates? A s a novelist, I’ve always found the idea of promoting reading because it improves cognitive skills deeply depressing. Reading is a wonderful thing not because it makes our brains better but because it is enjoyable, enriching and gives us new experiences: just like games. Once someone has told you that something is good for you, it immediately becomes less attractive. I’m not sure it’s necessary to say that playing games will save the world or improve us. Can’t we just have fun?(1). ( 单选题) 1. Why has Jane McGonagal’s position re-ignited discussion? (本题5.0分) A、 Her viewpoint on playing games is very different from the traditional ones.B、 She believes games can create collaborative, optimistic and diligent people.C、 She thinks problems in real world can be solved as a game.D、 She claims that playing games stimulate our interest. 学生答案：C 标准答案：A 解析：得分：0(2). ( 单选题) Which of the following statements is INCORRECT? (本题5.0分)A、 Game-like mechanics may encourage people to try something new.B、 Certain games help to improve players’capacity of reasoning.C、 Playing games actually improves players’skills.D、 Certain games can improve players’speed of response.学生答案：D 标准答案：C 解析：得分：0(3). ( 单选题) What should be the purpose of promoting reading according to the author? (本题5.0分) A、 To broaden readers’eyesight. B、 To make readers more intelligent. C、 To improve readers’visual attention D、To please readers 学生答案：C 标准答案：D 解析：得分：0(4). ( 单选题) Throughout the passage, the author is in his attitude towards playing games(本题5.0分) A、favorable B、critical C、 neutral D、hesitant 学生答案：B 标准答案：A 解析：得分：02. (阅读理解题)TEXT B Open up most fashion magazines and you will see incredibly thin models with impossible hair and wearing unreasonably expensive, impracticably styled clothes. But shouldn’t clothes be comfortably durable and make a principle of being simple for the individual who wears them? Why are we constantly told that we need to buy new clothes and add fresh pieces to our collection? Fashions change year after year so lots of people can make piles of money. If folks are convinced that they need a different look each season, that this year’s sweater’s length and shoes style are important, they can be persuaded to buy. The fashion industry would have you ignore your shortcomings and just make you feel beautiful and happy. In fact it is not only a phenomenon we can find in people’s dressing. Fashion controls our lives. Fashion controls what we wear, what we eat, what we drink, the way we cut our hair, the makeup we buy and use, the color of the cars we drive. Fashion ev en controls our ideas. You don’t believe me? How many of your friends are vegetarians? Why are they vegetarians? Because it is fashionable! Where does fashion come from? Often the reasons are quite logical. Scientists and historians study the fashions of the past and discover the secrets of each fashion. When girls see an attractive guy, their blood pressure rises and their lips become redder. That’s why guys think girls wearing lipstick are beautiful. Why do guys shave their heads? In the past soldiers shaved their heads to kill the insects that lived in their hair. Now guys shave their heads so that they look strong and masculine, like soldiers. People spend a lot of time and money on fashion. But are they wasting their money? Changes in fashion help to develop new technologies. Changes in style create work for people all over the world. Many people work in the fashion industry, particularly in the fashion capitals of London, New York, Paris and Milan. And finally, fashion makes you feel good, doesn’t it? When you are dressed in the latest style, dancing to the most fashionable music, after watching the latest hit film, you feel great, don’t you?(1). ( 单选题) What’s the author’s viewpoint about the models and their hairstyles and clothes?(本题 4.0分) A、Unbiased. B、Indifferent. C、CriticalD、Appreciative. 学生答案：D 标准答案：C 解析：得分：0(2). ( 单选题) It is indicated by the author that clothes should be (本题 4.0分)A、comfortable and durableB、new and freshC、expensive and fashionableD、simple and unique 学生答案：C 标准答案：A 解析：得分：0(3). ( 单选题) The fashion industry makes profits by (本题4.0分) A、selling the products at high prices B、creating a need in you C、helping you get rid of your shortcomings D、making you look more beautiful 学生答案：C 标准答案：B 解析：得分：0(4). ( 单选题) The author thinks what has been found about fashions by the scientists and the historians is(本题 4.0分) A、incredible B、amazing C、reasonable D、creative 学生答案：C 标准答案：C 解析：得分：4(5). ( 单选题) The passage mentions the advantages of fashion EXCEPT that (本题4.0分) A、It can help promote technological development B、It enables people to remain up-to-date C、It can create more job opportunities for people D、It can make people achieve a great feeling 学生答案：B 标准答案：B 解析：得分：43. (阅读理解题)TEXT C One day one of my self-proclaimed Month of Gratitude, my five-year-old son woke up “bored” at 5:15 a.m., I spied a speeding ticket in my wife’s purse, and our water heater spluttered to its death as I was getting into the shower. Ordinarily, I would have started complaining and the day would’ve been off to an ugly start. But this day was different. How cute my child’s dimples (酒窝) are. How fetching my wife’s taste for adventure. Only 29 days to go. Just a week earlier, as I struggled with the feeling that I’d been put on the earth to load and unload the dishwasher, I’d de cided it was time to end my reflexive complaining. But it wasn’t simply the little things that were annoying me. All of a sudden, my friends were dealing with bad news ---- cancer diagnoses, divorce, and job loss. Shouldn’t I be celebrating my relative goo d fortune? I’d heard about the feel-good benefits of a gratitude attitude. Hoping for tips, I called professor Emmons, who pioneered research on the benefits of positive thinking. Emmons quoted new studies that indicated that even pretending to be thankful raises levels of the chemicals associated with pleasure and contentment. He recommended keeping a log of everything I’m grateful for in a given week or month. I followed his suggestions, but my first attempts at keeping a gratitude list were pretty weak: coffee, naps, caffeine in general. As my list grew, I found more uplift: freshly picked blueberries; the Beatles’ White Album; that I’m not bald. By day three, I was on a tear, thanking every grocery bagger and parent on the playground like I’d just won an Oscar and hanging Post-it notes to remind myself of the next day’s thank-you targets: the mailman, my Allegiance effect. “if you overdo gratitude, it loses its meaning or, worse, becomes a chore,” professor Emmons told me when I mentioned my slump. Be selective, he advised, and focus on thanking the unsung heroes in your life. Then professor Emmons suggested a “gratitude visit.” Think of a person who has made a major difference in your life and whom you’ve never properly thanked. Compose a detailed let ter to him or her that expresses your appreciation in concrete terms, then read it aloud, face-to-face. I immediately flashed on Miss Riggi, my eighth-grade English teacher. She was the first one to open my eyes to Hemingway, Faulkner, and other literary giants. To this day, I am guided by her advice (“Never be boring”). I booked plane tickets to my hometown, Scranton, Pennsylvania. Miss Riggi was shorter than I remember, though unmistakable with her still long, black hair and bright, intelligent eyes. After a slightly awkward hug and small talk, we settled in. I took a deep breath and read. “I want to thank you in person for the impact you’ve had on my life,” I began. “Nearly 30 years ago, you introduced my eighth-grade class to the wonders of the written word. Your passion for stories and characters and your enthusiasm for words made me realize there was a world out there that made sense to me.” And whether it was Miss Riggi’s enormous smile when I finished the letter, or the way she held it close as we said goodbye, my feeling of peace and joy remained long after I returned home. Since then, I have written several more gratitude letters, and my wife and I both summon our “training” when we fee l saddled by life. The unpleasant matters are still there, but appreciation, I’ve learned, has an echo ---- and it’s loud enough to drown out the grumbling of one man emptying the dishwasher.(1). ( 单选题) The author didn’t start complaining when he met with unpleasant experiences because(本题3.3分) A、He thought the day was different from before B、It was one ofhis self-proclaimed day of Gratitide C、His son became more cute and his wife more adventurous D、He could manage these little unhappy things in life 学生答案：B 标准答案：B 解析：得分：3.3(2). ( 单选题) According to the passage, what did professor Emmons propose to have a gratitude attitude(本题3.3分) A、Making oneself appear to be grateful B、Keeping an elaborate dairy C、Thinking positively in a given time D、Recording everything appreciated for a certain time 学生答案：D 标准答案：D 解析：得分：3.3(3). ( 单选题) According to the context, “gratitude visit”in Paragraph Six refers to (本题 3.3分) A、Visit someone with a detailed letter B、Call on someone with an appreciated letter C、See someone you are indebted to D、See someone personally 学生答案：B 标准答案：C 解析：得分：0(4). ( 单选题) The author’s reunion with his English teacher, Miss Riggi, shows that (本题3.3分) A、The author was desperate to see his teacher B、His teacher had great impact on him C、His teacher still had a deep impression of the author D、The author wanted to testify the professor’s proposal 学生答案：D 标准答案：B 解析：得分：0 (5). ( 单选题) The last paragraph shows that (本题3.3分) A、Professor Emmons’suggestions were effective to the author. B、Professor Emmons’suggestions were unpractical to the author C、The author and his wife learn how to show gratitude to others D、Professor Emmons’suggestions were considered as unacceptable 学生答案：A 标准答案：A 解析：得分：3.3(6). ( 单选题) Which of the following can best serve as the title of the passage(本题3.5分)A、How to pay a gratitude visitB、How to make matters differentlyC、How to be thankful and improve your lifeD、How to become an appreciated man 学生答案：B 标准答案：C 解析：得分：04. (阅读理解题)TEXT D When I was a child in Bra in Italy, hardly any mothers had a job, grandmothers lived with their children and grandchildren and lunch and dinner were rites you couldn’t miss. Even if the world was collapsing around you, you would go home at a set time, sit down at the table and eat a full meat fondly prepared by the women of the house. Most ingredients came from local markets, though a lot of the vegetables were grown directly in our allotments, and meat came from animals raised by friends or acquaintances. The most “exotic” foods were bought at the neighborhood grocer’s shop. This typically Ita lian family scene has changed radically. In the 1960s and 1970s, the advent of supermarkets and cheap, mass-produced food swathed community-based economies. The boom years brought new freedom and money to spend, on food but also on leisure. Women were emancipated at last and startled to go out to work. Convenience foods were all the rage. Home-baked cakes and handmade pasta were out; factory-produced replicas were in. In the late 1980s, food processing became an out-and-out revolution. In the subsequent loss of domestic and artisanal (手工制作的) savoir-faire, traditional produce and biodiversity were threatened. The food production revolution that transformed Europe and North America meant more and cheaper food for all. But there were negative effects, too: environmental harm and a loss of cultural identity. Now that emerging nations are following in our footsteps, the downside is evident. If we can’t force those countries who are starting to glimpse emancipation from poverty to avoid our bad examples, we can at least propose more sustainable models of producing food. It is important to trigger the virtuous processes that lead to food that tastes great, is ecologically benign, and is produced and consumed in a way that is fair to all. We must look tothe past. We need to learn from what we have forgotten or set aside in the name of modernity. The values of rural societies are the values we have to restore to our food, and hence to our culture. These values teach us that food is better when it is fresh and seasonal, when it is produced close to home, and when it is eaten with the people we love. I’m not advocating a return to the family scene of my childhood; such environments were often indicative of poverty and social backwardness. And going back to the old days would force women back into the kitchen. But we can find ideas in the past that we might apply in our increasingly complex society, and so ensure a serene future for ourselves and the earth. Food is central to our lives. It would be wrong to turn it into nothing more than a fuel enabling us to move faster, hence accelerating the consumption of the earth and its resources. In fact, it would be the worst mistake we could ever make.(1). ( 单选题) We can learn from the beginning of the passage (本题 4.0分)A、Women were not willing to go out for work in the pastB、Families ate lunch at a fixed time at homeC、Most of the vegetables people ate were produced by themselvesD、Foods sold in the grocer’s shop were rare and fresh 学生答案：A 标准答案：C 解析：得分：0(2). ( 单选题) “out-and-out”in Paragraph 2 means (本题4.0分) A、completeB、 successfulC、controversialD、futile 学生答案：B 标准答案：A 解析：得分：0(3). ( 单选题) which of the following statements about changes that took place after 1960s in INCORRECT(本题 4.0分) A、There were more supermarkets and food was cheap B、Women were freed from house chores and began to work C、Home-baked cakes and handmade pasta disappeared D、Traditional produce was threatened due to environmental pollution 学生答案：C 标准答案：D 解析：得分：0(4). ( 单选题) We can learn from Paragraph 5 that (本题4.0分) A、The author felt disappointed at the food production revolution B、Food is most delicious when it is fresh and homemade C、The author would rather go back to his childhood D、Applying ideas in the past to modern society would do us good 学生答案：C 标准答案：D 解析：得分：0(5). ( 单选题) The main purpose of the passage is (本题4.0分) A、To describe the Italian tradition B、To explain the needs of modern food processing C、To raise concern about sustainable food-producing D、To persuade parents to make more-homemade food 学生答案：B 标准答案：C 解析：得分：05. (阅读理解题) It is a truth universally acknowledged that a single man in possession of a good fortune must be in want of a wife. However little known the feelings or views of such a man may be on his first entering a neighborhood, this truth is so well fixed in the minds of the surrounding families, that he is considered the rightful property of some one or other of their daughters. “My dear Mr. Bennet,” said his lady to him one day, “have you heard that Netherfield Park is let at last?” Mr. Bennet replied that he had not. “But it is,” returned she; “for Mrs. Long has just been here, and she told me all about it.” Mr. Bennet made no answer. “Do you not want to kn ow who has taken it?” cried his wife impatiently. “You want to tell me, and I have no objection to hearing it.” This was invitation enough. “Why, my dear, you must know, Mrs. Long says that Netherfield is taken by a young man of large fortune from the north of England; that he came down on Monday in a chaise and four to see the place, and was so much delighted with it, that he agreed with Mr. Morris immediately; that he is to take possession before。
第一次作业参考答案
1
A A
8
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f ,5
5 a,8
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238 1 2.416 583.5
235
2.7
1.692
680.9 1 1.72%
9、设核燃料中 235U 的富集度为 3.2%(重量)，试求其 235U 与 238U 的核子数之比。
解：设 235U 与 238U 的核子数之比为 ，则富集度为
解：查表得： f ,5 583.5 b，a,5 680.9 b，a,8 2.70 b， a,c 0.0034 b
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热中子利用系数：
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5
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235
故消耗的 U 量为
m (1 ) 3.125 1010 Eth A103 NA
(1 0.169) 3.125 1010 1.8 1012 235 103
0.0257kg
6.022 1023
8．(1) 计算并画出中子能量为 0.0253eV 时的富集铀的参数 与富集度的函数关系。
8
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电大-行政伦理学-第一次作业(附答案)
行政伦理学作业一1单项选择题（每小题1分，30小题，共30分）（总分30.00）1.下面关于行政作风的论述中，正确的是（）（1.00分）A.行政作风即行政办事作风B.行政作风仅指行政机关的工作作风C.行政作风与行政人员的个人气质无关D.行政作风仅指行政人员的个人作风2.对于行政伦理关系来说，首要的原则是（）。
（1.00分）A.爱民B.民主C.公平D.廉政3.在行政伦理的观念体系中，最根本的是（）。
（1.00分）A.公私权利关系B.公私利益关系C.个人与社会的关系D.权利义务关系4.关于行政道德的本质和发展规律的科学是（）。
（1.00分）A.行政道德学B.政治伦理学C.行政伦理学D.管理伦理学5.优良行政作风的养成过程一般包括认知阶段、认同阶段和（）。
（1.00分）A.提高阶段B.总结阶段C.评价阶段D.践行阶段6.把公平当作各种德行的总称的古希腊思想家是（）。
（1.00分）A.亚里士多德B.苏格拉底C.柏拉图D.西塞罗7.中国古代正义思想的主流可以说是（）。
（1.00分）A.天道正义观B.自然正义观C.强力正义观D.神学正义观8.行政作风是行政道德的构成要素和行政道德的（）。
（1.00分）A.主观努力B.客观基础C.内在体现D.外在显现9.行政作风形成的基础和根本途径是行政人员的（）。
（1.00分）A.行政管理实践B.思想政治教育C.行政能力培养D.知识理论学习10.专门行使行政权力和制定公共政策的系统是（）。
（1.00分）A.管理系统B.行政系统C.执行系统D.政治系统11.在行政作风的养成过程中，道德修养能否成功达标的关键阶段是（）。
（1.00分）A.总结阶段B.认知阶段C.认同阶段D.践行阶段12.行政伦理观的价值目标是（）。
（1.00分）A.培养正确的权力观B.提高行政效率C.健全行政法治D.确立和完善行政人格13.思想政治工作的“重中之重”是（）。
（1.00分）A.增强法治观念B.加强制度建设C.加强理想与信念教育D.提高道德水平14.伦理目标的确立，为行政人员履行职责的行为提供了（）。
第一次 作业答案
第二章财务管理的基础知识一、计算题1.某企业年初投资100万元生产一种新产品，预计每年年末可得净收益10万元，投资年限为10年，年利率为5%。
【要求】（1）计算该投资项目年收益的现值和终值。
（2）计算年初投资额的终值。
解：（1）年收益现值P= 10×（P/A，5%，10）= 10×= (万元)年收益终值F= 10×（F/A，5%，10）=10×=（万元）（2）年初投资额终值F=100×（F/P，5%，10）=100×=（万元）2.某人准备5年后支付一笔10 000元的款项，年利率为5%。
【要求】计算此人现在应存入银行多少钱，5年的复利利息为多少元。
解：复利现值P=10000×（P/F，5%，5）=10000×=7835（元）复利利息I=F-P=10000-7835=2165（元）3.某企业2003年年初投资一个项目，预计从2006年起至2010年每年年末可获得净收益20万元，年利率为5%。
【要求】计算该投资项目年净收益的终值和现值。
解:年净收益的终值F=20×（F/A，5%，5）=20×=（万元）年收益的现值P=20×[（P/A，i，m+n）﹣（P/A，i，m） =20×[（P/A，5%，8）﹣（P/A，5%，3）=20×（﹣）=（万元）4.某企业投资一个项目，每年年初投入10万元，连续投资3年，年利率为5%。
【要求】（1）计算该项目3年后的投资总额（2）若3年的投资额于年初一次性投入，投资总额是多少？解：（1）预付年金终值F=10×（F/A，5%，3）×（1+5%）=10××=（万元）（2）预付年金现值P=10×（P/A，5%，3）×（1+5%） =10××=（万元）投资项目的年利率为8%，每季度复利一次。
电大行政管理本科《当代中国政治制度》形考网上作业答案好
电大行政管理本科《当代中国政治制度》形考网上第一次作业答案（河南平台）第一次作业1一、单项选择题(每小题1分，10小题，共10分)1-5.B D. B A. D 6-10. C A D A B二、多项选择题(每小题2分，共10分)1. A B D E F2. A B E3. B D F4. B C E F5. A B C D E F三、简答题(每小题10分，共20分)1.中国当代政治制度有哪些基本内容？参考答案：答：中华人民共和国政治制度的基本内容应当包括：人民民主专政制度，宪法制度，政党制度，人民代表大会制度，国家元首制度，国家行政制度，民族区域自治制度，特别行政区制度，司法制度，军事制度，干部人事制度，多党合作和政治协商制度，选举制度，以及基层自治与民主制度等。
2.简述中国共产党的执政方式。
参考答案：答：组织和领导国家的立法和执法活动；加强对人民军队的领导；领导和管理干部工作；组织和动员社会；重视思想政治工作。
四、论述题1.联系实际说明宪法的基本原则。
参考答案：答：宪法的基本原则主要有人民主权原则、人权保障原则、权力制约原则和法治原则。
人民主权原则：主权是指一个国家所拥有的独立自主地处理其内外事务的最高权力。
人民主权原则指的是国家中的绝大多数人拥有国家的最高权力，或者说国家的一切权力属于人民。
社会主义国家确立了人民主权的原则，在宪法中予以确认，并且规定了人民行使主权的方式。
人权保障原则：人权是指人依据其自然属性和社会本质所应平等享有的权利。
社会主义国家在本质上由人民当家作主，人民在国家生活中处于主导的支配地位，而公民的权利和自由是人民当家作主的首要前提和直接表现，这就必然要求通过各种途径和形式来确保公民能够享受各种权利和自由。
因此，社会主义国家理所应当地在宪法中确认了人权保障原则。
权力制约原则：权力制约原则是指国家权力的各部分之间相互牵制、彼此约束、互相监督，以保障国家权力正常运行并进而保障公民权利的原则。
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1)气体压力为7.0Mpa,温度为30℃，相对密度为0.7，气体最低流动温度为4.4℃，气体处理量为25×104m3/d。
注入浓度为80%的乙二醇（相对分子质量为62.1）为了防止水合物的形成，求乙二醇的注入量。
（22页图2-1右上角错误，应该改为1KPa=0.145psi
2)脱硫工艺模拟：原料气组成见下表：
其中进气温度28℃，进气压力4.5MPa,天然气处理量100×10m/d，化学溶剂DEA,质量指标H2S不大于20mg/m3，CO2体积分数不大于3% 3）原料气：
流量：100×104m3/d 压力：32MPa
℃含水量：5%质量分数
温度：40
K=1.8W/(m3℃)，环境温度：5℃。
处理站进口压力要求：4MPa。
试用HYSYS模拟出加热炉负荷；若注入80%乙二醇（相对分子质量为62.1），防止水合物的形成，求乙二醇的注入量。