1、NMET阅读理解解读 Maybe ten-year-old Elizabeth put it best when she said to her father , “But , Dad , you cant be healthy if youre dead .” Dad , in a hurry to get home before dark so he could go for a run , had forgotten to wear his safety belta mistake 75% of the US population make every day . The big que
2、stion is why . There have been many myths about safety belts ever since their first appearance in cars some forty year ago . The following are three of the most common . Myth Number One : Its best to be “ thrown clear ” of a serious accident . Truth : Sorry , but any accident serious enough to “thro
3、w you clear ” is also going to be serious enough to give you a very bad landing . And chances are youll have traveled through a windshield（挡风玻璃）or door to do it . Studies show that chances of dying after a car accident are twenty-five times greater in cases where peoples are “thrown clear .” Myth Nu
4、mber Two : Safety belts “ trap ” people in cars that are burning or sinking in water . Truth : Sorry again , but studies show that people knocked unconscious(昏迷)due to not wearing safety belts have a greater chance of dying in these accidents . People wearing safety belts are usually protected to th
5、e point of having a clear head to free themselves from such dangerous situations , not to be trapped in them . Myth Number Three : Safety belts arent needed at speeds of less that 30 miles per hour(mph). Truth : When two cars travelling at 30 mph hit each other , an unbelted driver would meet the wi
6、ndshield with a force equal to diving headfirst into the ground a height of 10 meters . 1. Why did Elizabeth say to her father , “But , Dad , you cant be healthy if youre dead ”? A. He was driving at great speed . B. He was running across the street . C. He didnt have his safety belt on . D. He didn
7、t take his medicine on time . 评析：这是一篇由一个女孩对其父驾车不系安全带发出变相批评引出的,批驳开车不系安全带三个谬论的文章。女孩的批评是：“Dad , you cant be healthy if youre dead .”（爸爸，您如果死了，就无所谓健康不健康了）在这没头没脑的近乎疯话之后，便开始解释女孩为什么会有此话：Dad , in a hurry to get home before dark so he could go for a run .（那位父亲匆忙驾车赶在天黑前到家为的是去练跑步健身）因此，had forgotten to wear his
8、 safety belt（忘了系安全带）。文章在此之后便是对不系安全带三种错识认识的批驳。所以女孩为什么批评其父便不言自明了。 答案：C 2. The reason Father was in a hurry to get home was that he _ . A. wasnt feeling very well B. hated to drive in the dark C. wanted to take some exercise D. didnt want to be caught by the police 评析：上文已经指出那位父亲不系安全带就匆忙驾车回家的原因是： in a h
9、urry to get home before dark so he could go for a run（他能去练习跑步）。英语中动词与名词之间的词性变化早已是司空见惯之事，have a swim（游个泳）, take a walk（散散步）等。所以go for a run（去练习跑步）纯属理解中之易事。 答案：C 3. According to the text , to be “thrown clear ” of a serious accident is very dangerous because you _ . A. may be knocked down by other car
10、s B. may get seriously hurt being thrown out of the car C. may find it impossible to get away from the seat D. may get caught in the car door 评析：clear这个副词此处的词义是：so as to be no longer inside , free from blocks（不再在里面，无障碍地出去）。这一词义一般来讲教学或复习中很涉及，但是从to be thrown clear的上下文中，我们得知to be thrown clear是不系安全带的第一恶
11、果。所以系安全带的目的是在事故发生时，司机不被thrown clear。系好安全带在发生事故时，根据一般推理司机不会被抛出，但不系安全带，一旦事故发生，司机就会无障碍地抛出。所以在批驳Myth Number One（荒诞的谬论之一）时，分析了“无障碍抛出”的致命恶果：把司机狠狠地抛到地上，还有撞碎挡风玻璃或车门再抛出的危险。事实表明不系安全带被“无障碍抛出的死亡率是系安全带的死亡率的二十倍。”由此可以明瞭“无障碍地抛出”更危险的原因。由此可见，遇到熟词具有新义时，要冷静分析其语言场合的已知部分，然后根据常识做合理的联想是正确解答这类问题的有效方法。 答案：B。 4. Some people p
12、refer to drive without wearing a safety belt because they believe _ . A. the belt prevents them from escaping in an accident B. they will be unable to think clearly in an accident C. they will be caught when help comes D. cars catch fire easily 评析：此题考查的是对细节的理解能力。短文中批驳的关于不系安全带的第二个荒诞谬论，即系安全带会把司机困在起火或堕
13、入水中的车中。正是因为有些司机有此错误认识才不系安全带的。 答案：A。 5. What is the advice given in the text ? A. Never drive faster than 30 miles an hour . B. Try your best to save yourself in a car accident . C. Never forget to wear the safety belt while driving . D. Drive slowly while youre not wearing a safety belt . 评析：此题考查的是对
14、文章主旨的理解能力。全篇短文讲的都是驾车时系安全带的好处和不系安全带的危险。因此本文的中心思想是非常明确的。 答案：C。E When a group of children politely stop a conversation with you , saying : “We have to go to work now ,” youre left feeling surprised and certainly uneasy . After all , this is the 1990s and the idea of children working is just unthinkable
15、 . That is , until you are told that they are all pupils of stage schools , and that the “ work ” they go off to is to go on the stage in a theatre . Stage schools often act as agencies（代理机构）to supply children for stage and television work . More worthy of the name “stage school ”are those few place
16、s where children attend full time , with a training for the theatre and a geneal education . A visit to such schools will leave you in no doubt that the children enjoy themselves . After all , what lively children wouldnt settle for spending only half the day doing ordinary school work , and acting
17、, singing or dancing their way through the other half of the day ? Then of course there are times for the children to make a name and make a little money in some big show . Some stage schools give their children too much professional work at such a young age . But the law is very tight on the amount
18、 they can do . Those under 13 are limited to 40 days in the year ; those over 13 do 80 days . The schools themselves admit that not all children will be successful in the profession for which they are being trained . So what happens to those who dont make it ? While all the leading schools say they
19、place great importance on children getting good study results , the facts seem to suggest this is not always the case . 1. People would stop feeling uneasy when realising that the children theyre talking to _ . A. attend a stage school B. are going to the theatre C. have got some work to do D. love
20、singing and dancing 评析：这是一道细节理解题。短文的第一句话交代了孩子们停止谈话，告诉你他们要去干活时你会产生惊愕和不舒服的感受，但是until you are told that they are pupils of stage schools , and that the work they go off to is to go on the stage in a theatre .（直到你被告知他们是舞台学校的学生，而且他们离开你要去干的活是要到戏院的舞台上，你的那种不快感觉才会消失）。如能很好地理解此句的含义，我们就会停止那种不快的感觉，因为那些孩子要到舞台学校去上
21、学。 答案：A。 2. In the writers opinion , a good stage school should _ . A. produce star performers B. help pupils improve their study skills C. train pupils in language and performing arts D. provide a general education and stage training 评析：此题考查的是推断理解力。因为作者没有明确表示舞台应该怎么办才算是正确的。但是从本文最后一段的评述中，还是可以看到作者的态度的
22、倾向。作者是这样说的：那些学校本身也承认不是所有的孩子们在他们正在训练的专业中是成功的。所以那些不太成功的孩子们在未来应该怎么办呢？虽然所有那些起领先作用的学校声称他们对学生们的学习成绩是很重视的，但事实表明，情况与他们的说法是有出入的。（while用于句首时，往往引导让步状语从句，其词义是：although）如果应考生知道while这个词义，对了解作者态度上的倾向大有益处。 答案：D。 3. “Professional work ” as used in the text means _ . A. ordinary school work B. money-making performanc
23、es C. stage training at school D. acting , singing or dancing after class 评析：此题考查的是词义转换理解能力。虽然professional是个生词，但其语境和上下文都或明或暗地告诉我们，孩子们所谓的professional work指的是他们在舞台上接受的训练。 答案：C。 4. Which of the following best describes how the writer feels about stage schools ? A. He thinks highly of what they have to
24、offer . B. He favours an early start in the training of performing arts . C. He feels uncomfortable about children putting on night shows . D. He doubts the standard of ordinary education they have reached . 评析：此题考查的是逻辑推理能力。作者在本文的最后两句话实际上就是作者对舞台学校的看法。它是从另一角度检测读者对本文最后两个句子的理解力。 答案：D。 对2000年NMET阅读理解实例的
25、评析III. 阅读理解（共25小题。A节每小题2分，B节每小题1分；满分45分） A)阅读下列短文，从每题所给的四个选项中，选出一个最佳答案。A New York , 10 November 5:27 pm , yesterday . Biggest power failure in the citys history . * Thousands of people got stuck in lifts . Martin Saltzman spent three hours between the 21st and 22nd floors of the Empire State Buildin
26、g . “There were twelve of us . But no one panicked . We passed the time telling stories and playing word games . One man wanted to smoke but we didnt let him . Firemen finally got us out .” * “It was the best night weve ever had ,” said Angela Carraro , who runs an Italian restaurant on 42nd Street
27、. “We had lots of candles on the tables and the waiters were carrying candles on their trays . The place was full and all night , in fact , for after we had closed , we let the people stay on and spend the night here .” * The zoos had their problems like everyone else . Keepers worked through the ni
28、ght . They used blankets to keep flying squirrels and small monkeys warm . While zoos had problems keeping warm , supermarkets had problems keeping cool . “All of our ice cream and frozen foods melted ,” said the manager of a store in downtown Manhattan . “They were worth $50,000 .” * The big electr
29、ic clock in the lobby（大厅）of the Waldorf-Astoria Hotel in downtown Manhattan started ticking（滴答）again at 5:25 this morning . It was almost on time . 总括：读完本篇第一行，应立即知道这是一篇选自报纸的文章，因为只要开头一交代地点和时间，然后用非句子的形式交代发生的某事。这是新闻体极其典型的特征。 在非句式的部分中读到power failure很可能不知其汉语的相应内容。此时千万不要紧张和慌张，这往往是命题的设计者一上来就先给你来个下马威的本意。明白对
30、方的来意之后，平心静气地往下读，读完第一段可能还不能明白power failure的内涵，接着镇静地往下读第三段，这段交代的是power failure发生后，四十二街的意大利餐馆由于所有餐桌上都点上蜡烛照明，生意火爆的情景；第四段说的是在power failure发生后，动物保管员们要用毛毯给动物保暖而曼哈顿的超市所遇的麻烦是：因为不能保持低温至于冷冻食品化冻所造成的经济损失；最后一段说的某大饭店大厅中的大电钟在power failure发生那一刹那，钟停了，其时为：下午五点二十七分，当重新供电，一切恢复正常那一刹那的时间是：早晨五点二十五分。读完这些就应清楚地知道power failure
31、的内涵是：全城停电。 1. Throughout the period of darkness , Martin Saltzman and the eleven others were _ . A. nervousB. excited C. calmD. frightened 评析：此题考查的是对本文第二段的段意的推断能力；第二段中有一个高中生没学过的生词panicked但其后的句子说的是：我们讲故事或做猜字游戏度过了那段时光，还有个人想抽烟，但我们没让他抽。这完全可以说明当时卡在电梯中的十二人是很镇静的。 答案：C。 2. In what way was the night of Novem
32、ber 9 the best night for Angela Carraro ? A. She had a taste of adventure . B. Burning candles brightened the place . C. Business was better than usual . D. Many people stayed the night in her restaurant . 评析：店老板说（停电的）那个晚上是他们所有过的最好的夜晚，因为我们有的是蜡烛给每张餐桌照明，服务员的托盘上也都放着蜡烛照明，整个一晚上整个餐厅爆满，难道这样生意还不火爆吗？ 答案：C。 3
33、. How long did the power failure last ? A. Nearly 12 hours . B. More than 12 hours . C. Nearly 24 hours . D. More than 24 hours . 评析：此题考查的是对两个细节的理解，停电发生在下午五点十七分，而来电是第二天早晨五点二十五分，这样根据常识和极简单的计算，就应知道停电不到十二个小时。 答案：A。B The easy way out isnt always easiest . I learned that lesson when I decided to treat Do
34、ug , my husband of one month , to a special meal . I glanced through my cookbook and chose a menu which included homemade bread . Knowing the bread would take time , I started on it as soon as Doug left for work . As I was not experienced in cooking , I thought if a dozen was good , two dozen would
35、be better , so I doubled everything . As Doug loved oranges , I also opened a can of orange and poured it all into the bowl . Soon there was a sticky dough（面团）covered with ugly yellowish marks . Realizing I had been defeated , I put the dough in the rubbish bin outside so I wouldnt have to face Doug
36、 laughing at my work . I went on preparing the rest of the meal , and , when Doug got home , we sat down to Cornish chicken with rice . He tried to enjoy the meal but seemed disturbed . Twice he got up and went outside , saying he thought he heard a noise . The third time he left , I went to the win
37、dow to see what he was doing . Looking out , I saw Doug standing about three feet from the rubbish bin , holding the lid up with a stick and looking into the container . When I came out of the house , he dropped the stick and explained that there was something alive in our rubbish bin . Picking up t
38、he stick again , he held the lid up enough for me to see . I felt cold . But I stepped closer and looked harder . Without doubt it was my work . The hot sun had caused the dough to double in size and the fermenting yeast（酵母）made the surface shake and sigh as though it were breathing . It looked like
39、 some unknown being from outer space . I could see why Doug was so shaken . I had to admit what the living thingwas and why it was there . I dont know who was more embarrassed（尴尬）by the whole thingDoug or me . 总括：本文讲的是一位新婚夫人不会做饭看着烹饪书做第一顿饭来款待其老公，弄得一团糟可笑的经历。 1. The writers purpose in writing this stor
40、y is _ . A. to tell an interesting experience B. to show the easiest way out of a difficulty C. to describe the trouble facing a newly married woman D. to explain the difficulty of learning to cook from books 评析：不论从故事的情节还是看行文的笔触，作者讲述的这个故事的目的纯粹是讲述其一个有趣的经历。 2. Why did the womans attempt at making the
41、bread turn out to be unsuccessful ? A. The canned orange had gone bad . B. She didnt use the right kind of flour . C. The cookbook was hard to understand . D. She did not follow the directions closely . 评析：此题考查的是对细节的理解，文章在开始时一再地做铺垫，说女主人不会做饭，接下去又讲述了她不按做饭的要求去做，凭想象当然我行我素，（我想如果一打好，那么两打肯定更好，所以我把一切都加了3倍。）
42、由此可见她所以闹出这么多的笑话根源是：不按着说明去做。 答案：D。 3. Why did the woman put the dough in the rubbish bin ? A. She didnt see the use of keeping it . B. She meant to joke with her husband . C. She didnt want her husband to see it . D. She hoped it would soon dry in the sun . 评析：此题考查的还是对细节的理解能力。短文中有这样一句话：意识到我的失败，我把那面团倒
43、入户外的垃圾筒内，那样我的老公就不会因看见我那失败的作品而嘲笑我了。 答案：C。 4. What made the dough in the bin look frightening ? A. The rising and falling movement . B. The strange-looking marks . C. Its shape . D. Its size . 评析：此题考查的仍然是表述细节的个别句子的能力。短文中有两个句子这样说道：阳光的爆晒使那面团扩大了两倍，酵母使面包的表面颤抖和叹气就好像它在喘气一样。 答案：A。 5. When Doug went out the t
44、hird time , the woman looked out of the window because she was _ . A. surprised at his being interested in the bin B. afraid that he would discover her secret C. unhappy that he didnt enjoy the meal D. curious to know what disturbed him 评析：此题考查的还是对个别句子所表述的细节的理解能力。（第三次他走后，我走到窗口想看看他在做什么。）而在其前有这样的句子（他尽
45、力装着很喜欢我做的饭但事实被困扰了）所以当此题问的是当她老公第三次离开餐桌时，该女主人公从窗口往外看，那是因为她想知道她丈夫究竟被什么事困扰了。 答案：D。C Decision-thinking is not unlike pokerit often matters not only what you think , but also what others think you think and what you think they think you think . The mental process（过程）is similar . Naturally , this card game
46、 has often been of considerable interest to people who are , by any standards , good thinkers . The great mathematician John von Neumann was one of the founders of game theory . In particular , he showed that all games fall into two classes : there are what he called games of perfect information, ga
47、mes like chess where the players cant hide anything or play tricks : they dont win by chance , but by means of logic and skills . Then there are games of imperfect information , like poker , in which it is impossible to know in advance that one course of action is better than another . One mistaken
48、idea about business is that it can be treated as a game of perfect information . Quite the reverse . Business , politics , life itself are games which we must normally play with very imperfect information . Business decisions are often made with many unknown and unknowable factors（因素）which would eve
49、n puzzle（困惑）best poker players . But few business people find it comfortable to admit that they are taking a chance , and many still prefer to believe that they are playing chess , not poker . 总括：本文是篇议论文，它主要介绍了人们做出决定的思维过程。人们在掌握全部情况下，做出的决定或在情况不完全掌握下所做出的决定的思维过程的特点：下棋是在掌握完全的情况下做决定，而打扑克，在做生意或政治生活中所做出的决定
50、都是在有许多不可知的因素下做的。 1. The subject discussed in this text is _ . A. the process of reaching decisions B. the difference between poker and chess C. the secret of making good business plans D. the value of information in winning games 评析：此题考查的是篇章逻辑关系。全文探讨都是做出决定的过程。 答案：A。 2. An important factor in a game
51、of imperfect information is _ . A. rulesB. luckC. timeD. ideas 评析：第二段阐述的是在了解全部情况的前提下，如下棋，做出决定，在这种情况下，决定做得是否得当，不是靠运气，而是靠逻辑和正种的技巧。（They dont win by chance , but by means of logic and skills）。换言之，在对情况不完全掌握的情况下，做出正确决定，就往往有其侥幸的时候，就有时得碰运气。 答案：B。 3. Which of the following can be used in place of“Quite the
52、reverse”? A. Quite right .B. True enough . C. Most unlikely .D. Just the opposite . 评析：此题是词义理解题，换言之检测的是用英语解释英语的能力。此词组出现在第三段中，第三段的段意是：有关做生意的一个错误概念是做生意可以当做在掌握全部情况下做决定。，做生意，搞政治在生活中做决定就是像在不掌握全部情况下做出决定那样。由全文的逻辑关系中，我们知道，空缺处需要的是：恰恰相反。 答案：D。 4. In the writers opinion , when making business decisions one sho
53、uld _ . A. put perfect information before imperfect information B. accept the existence of unknown factors C. regard business as a game of chess D. mix known and unknown factors 评析：此题考查的是对细节的理解，既然做生意像打牌一样是在不掌握全部情况下做出决定，那么就应该承认或接受那些不可知因素的存在。 答案：B。D Olaf Stapledon wrote a book called First and Last Me
54、n , in which he looked millions of years ahead . He told of different men and of strange civilisations（文明）, broken up by longdark agesin between . In his view , what is called the present time is no more than a moment in human history and we are just the First Men . In 2,000 million years from now t
55、here will be the Eighteenth or Last Men . However , most of our ideas about the future are really very short-sighted . Perhaps we can see some possibilities for the next fifty years . But the next hundred ? The next thousand ? The next million ? Thats much more difficult . When men and women lived b
56、y hunting 50,000 years ago , how could they even begin to picture modern life ? Yet to men of 50,000 years from now , we may seem as primitive（原始的）in our ideas as the Stone-Age hunters do to us . Perhaps they will spend their days gollocking to make new spundels , or struggling with their ballalator
57、s through the cribe . These words , which I have just made up , have to stand for things and ideas that we simply cant think of . So why bother even to try imagining life far in the future ? Here are two reasons . First , unless we remember how short our own lives are compared with the whole human h
58、istory , we are likely to think our own interests are much more important than they really are . If we make the earth a poor place to live on because we are careless or greedy（贪婪）or quarrelsome , our grandchildren will not bother to think of excuses for us . Second , by trying to escape from present
59、 interests and imagine life far in the future , we may arrive at quite fresh ideas that we can use ourselves . For example , if we imagine that in the future men may give up farming , we can think of trying it now . So set your imagination free when you think about the future . 总括：此篇短文也是一篇议论文，阐述的是现代
60、的人们应该如能多想一下未来的世界和社会是什么样子，就很可能为未来的人们的利益着想。 1. A particular mention made of Stapledons book in the opening paragraph _ . A. serves as a description of human history B. serves as an introduction to the discussion C. shows a disagreement of views D. shows the popularity of the book 评析：此题考查的是篇章结构的逻辑关系的理解
61、能力。本文之所以提及这本书，正是因为这本书的作者及这本书，主要是因为他在此书中阐述他个人对一百万年以后的展望或遥想。用这本书导入对未来社会的展望和设想。 答案：B。 2. The text discusses men and women 50,000 years ago and 50,000 years from now in order to show that _ . A. human history is extremely long B. life has changed a great deal C. it is useless to plan for the next 50 yea
62、rs D. it is difficult to tell what will happen in the future 评析：本文第二段，做出了现代人为未来的人和社会着想的因难所在的结论：我们对未来的看法实在鼠目寸光，也许我们能看到末来五十年的一些可能性，那么未来的一百年是什么样子？未来的一千年是什么样子？未来的一百万年以后是什么样子，那么未来的五百年以后是不是应该更困难呢！？ 答案：D。 3. Spundels and ballalators are used in the text to refer to _ . A. tools used in farming B. ideas abo
63、ut modern life C. unknown things in the future D. hunting skills in the Stone Age 评析：作者在第四段中这些词都是他刚刚瞎编造出来的，那么根据其语境不难看出第一个词是及物动词make的宾语，而第二个词则是介词with的宾语，所以它们都是未来人们要用的东西。 答案：C。 4. According to the writer of the text , imagining the future will _ . A. serve the interests of the present and future gener
64、ations B. enable us to better understand human history C. help us to improve farming D. make life worth living 评析：本文的第四段和第五段阐述了多设想一下未来会从两方面对未来有益：现代的人们不要太自私，要为未来的子孙留下一些有用的东西；现代的人们要尽可能多地为未来的人们着想，给他们留下更大的发展空间，因此我们要尽力地为未来发明创造新东西。 答案：A。E Excused from recycling（回收利用）because you live in a high rise with a
65、rubbish chute（垃圾道）? You wont be for long . Miamis Mark Shantzis has made it simple for those living in tall buildings to use the chute and recycle too . In Shantzis Hi-Rise Recycling System , a chute leads to a pie-shaped container with six boxes that can turn around when operated . The system , whi
66、ch fits in the same space as the chute and container now in use , enables glass , plastic , paper , metal , and other rubbish to go into separate boxes . The system is controlled from a board fixed next to the chute door . The board has a button for each class of recycling materials（as well as for u
67、nrecyclables）. At the press of a button , a microcomputer locks all other floors chute doors and sets the recycling container turning until the right box comes under the chute . The computer also counts the loads and gives a signal by phone when the box is full . And a particular piece of equipment
68、breaks up the nonrecyclables . Sorting（分类）recyclables before they are collected saves the use of expensive materials recovery equipment which otherwise has to do the sorting . Such equipment often makes recycled materials very expensive , so expensive that tons of recyclables remain wasted . Shantzi
69、s believes his system could help recycled materials become more cost-effective . 总括此篇短文是篇科技普及的短文，它主要介绍的是高层塔楼的垃圾的回收利用系统马克山茨西斯系统来进行垃圾分类和回收的情况。 1. The purpose in writing this text is _ . A. to encourage people to recycle their rubbish B. to introduce a recycling system for high rises C. to describe the
70、 use of computer technology in recycling D. to explain the need for rubbish collection in high rises 评析：此题考查的是对短文主旨大意及篇章结构的逻辑关系的理解能力。短文的第一段中就阐述了：麦阿密州的马克，山茨西斯系统使高层塔楼使用垃圾通道为住高层塔楼的人们倾倒和回收垃圾变得简便易行。 答案：B。 2. When he says“You wont be for long”the writer means that _ . A. youll soon be living in a cleaner
71、building B. rubbish chutes will become out of date before long C. you wont wait long for your turn to recycle rubbish D. it wont be long before youll have to recycle your rubbish 评析：此题考查的是某个句子在一个语境中的真正涵意。当作者说：you wont be for long .其实际的意思在整篇短文中的意思是：你住在高层塔楼里，你能很简便易行地实施垃圾分类与回收的时候已经近在咫尺，为时不远了。 答案：D 3. B
72、efore dropping rubbish into the chute you have to _ . A. lock the other floors chute door B. check if the container is full C. press the correct button D. break up the rubbish 评析：此题考查的对含有细节个别句子的理解能力。短文第三段集中阐述了每个垃圾通道小门旁的遥控板及其操作功能。 答案：C。 4. The biggest advantage of this new system is that _ . A. it reduces the cost of recycling B. it saves time and space C. it saves money for people living in high rises D. it make better use of the existing recovery equipment 评析：短文的最后的段落阐述的是这一垃圾新的回收系统在回收前先分类省去通过使用那昂贵的分类的材料的费用，因此避免可回收材料的浪费，所以使其成本造价就非常切实可行。 答案：A。
