答案
答案之书(解答之书) - 电子版精选答案
69 想得美。 70 想想有没有机会。 71 休息一下就好了。 72 学会妥协。 73 眼光长远一点。 74 要变通。 75 要有点耐心。 76 要知足。 77 要抓住问题的关键。 78 一定会有好结果的。 79 一笑了之。 80 以后再说。 81 用尽一切办法去努力。 82 有。 83 有可能。 84 仔细想想再说。 85 再等等看。 86 障碍重重。 87 这辈子都不可能。 88 这不可取。 89 这不切实际。 90 这不值得努力。 91 这会影响你的形象。 92 这件事会很麻烦。 93 这件事你说了不算。 94 这没什么意义。 95 这取决于你的行动。 96 这是肯定的。 97 没法保证。 98 无法预测。 99 这是在浪费金钱。 100 没什么好结果。 101 值得奋斗。 102 这种事情不要告诉别人。
35 木已成舟。 36 你必须解决一些相关的问题。 37 不会后悔的。 38 不会失望的。 39 得真正地努力一下。 40 还有别的选择。 41 你将取得成功。 42 你说了算。 43 你心里已经有答案了。 44 需要合作。 45 需要冒险。 46 要主动。 47 你在开玩笑吗？ 48 你做什么都没用。 49 奇迹即将降临。 50 千万别信。 51 千万不能失败。 52 全力以赴。 53 认清现实吧。 54 三思而后行。 55 尚待时日。 56 省点力气吧。 57 时机未到。 58 听听别人怎么说。 59 听听专家的意见。 60 万一错过，就没这个机会了。 61 为什么不呢？ 62 问问你的亲人。 63 问问自己，为什么要这么干。 64 先做点别的。 65 现在还说不清。 66 现在你可以。 67 相信你的直觉。 68 相信你最初的想法。
《经典常谈》考试真题汇总及答案
《经典常谈》考试真题汇总及答案示例文章篇一：《《经典常谈》考试真题汇总及答案》一、选择题1. 《经典常谈》中提到的第一部经典是（）A. 《说文解字》B. 《周易》C. 《尚书》D. 《诗经》答案：B。
解析：在《经典常谈》中，首先介绍的经典是《周易》。
《周易》是中国古代文化中非常重要的一部经典，它包含着丰富的哲学思想等内容。
就像一座智慧的大厦，《周易》是大厦的基石之一，奠定了中国古代哲学和文化思考的基础模式。
2. 以下关于《诗经》的说法错误的是（）A. 《诗经》是我国最早的一部诗歌总集。
B. 《诗经》中的诗都是四言诗。
C. 《诗经》里的诗按音乐分为风、雅、颂。
D. 《诗经》在古代有很高的地位，被尊为“经”。
答案：B。
解析：《诗经》中的诗不全是四言诗。
虽然四言诗在《诗经》中占了很大比例，但也有其他句式的诗。
这就好比一个大花园，四言诗是里面数量较多的花朵，但也有其他不同样式的花朵点缀其中。
《诗经》包含了丰富的诗歌形式，展现了古代诗歌创作的多样性。
3. 《尚书》在古代被称为（）A. 《书经》B. 《礼经》C. 《乐经》D. 《春秋经》答案：A。
解析：《尚书》在古代被称为《书经》。
它是我国最早的一部历史文献汇编，记载了很多上古时期的政治文件等重要内容。
可以把《尚书》想象成一个古老的历史宝库，里面装满了那个时代的珍贵资料，就像一个装满宝藏的箱子，等待着人们去发掘其中的历史价值。
二、简答题1. 简述《经典常谈》中《周易》的主要内容及其影响。
答案：《周易》主要包括经和传两部分。
经是由卦象、卦辞和爻辞组成。
卦象是一种独特的符号系统，通过阴阳两种爻的组合形成不同的卦。
卦辞和爻辞则是对卦象意义的解释。
《周易》的影响非常广泛。
在哲学方面，它奠定了中国古代哲学中阴阳辩证思想的基础，就像一颗种子，种下了中国哲学思考阴阳对立统一的理念。
在文化方面，它影响了中国人的思维方式，人们常常从《周易》中寻找智慧来应对生活中的各种情况，如同在黑暗中寻找一盏明灯，许多文学作品、艺术创作等也受到《周易》思想的影响。
工程材料课后答案(部分)
热固性: 聚合物加热加压成型固化后，不能再加热熔化和软化，称为热固性。
柔性: 在拉力作用下，呈卷曲状或线团状的线型大分子链可以伸展拉直，外力去除后，又缩回到原来的卷曲状和线团状。这种能拉伸、回缩的性能称为分子链的柔性。
解: r原子=34a=34×2.87×10-10≈1.24×10-10(m)
43πr3原子×2a3=43π34a3×2a3≈0.68=68%
(5) 在常温下,已知铜原子的直径d=2.55×10-10m，求铜的晶源自常数。 解: r原子=24a
(4) γ-Fe的一个晶胞内的原子数为（4个) .
(5) 高分子材料大分子链的化学组成以（C、H、O）为主要元素，根据组成元素的不同，可分为三类，即（碳链大分子) 、 (杂链大分子）和（元素链大分子) .
(6) 大分子链的几何形状主要为（线型) 、 (支化型）和（体型) 。热塑性聚合物主要是（线型和支化型）分子链，热固性聚合物主要是（体型）分子链。
答: ab段为右螺型位错。
bc段为刃型位错，半原子面过bc线且垂直于纸面，在纸面外。
cd段为混合位错。
de段为左螺型位错。
ea段为刃型位错，半原子面过ea线且垂直于纸面，在纸面里。 (8) 什么是固溶强化？造成固溶强化的原因是什么？
答: 形成固溶体使金属强度和硬度提高的现象称为固溶强化。
(7) 高分子材料的凝聚状态有（晶态) 、 (部分晶态）和（非晶态）三种。
(8) 线型非晶态高聚物在不同温度下的三种物理状态是（玻璃态) 、 (高弹态）和（粘流态) .
(9) 与金属材料比较，高分子材料的主要力学性能特点是强度（低) 、弹性（高) 、弹性模量（低）等。
百度答案库
1．B 2．D 3．时间空间夏江河径流量南北东西4．(1)17升(2)节水与接水谐音，意为节约每一滴用水(3)略(二)1．A 2．D 3．C 4．沉淀过滤蒸馏蒸馏蒸馏水5．过滤铁架台、漏斗、玻璃棒、烧杯、滤纸滤纸破了或滤液高于滤纸边缘(1)没有用玻璃棒引流(2)滤纸边缘高于漏斗边缘(3)漏斗末端没有紧靠烧杯内壁6．(1)B (2)D (3)过滤(4)不是7．(1)结晶(2)过滤8．D 9．B 10．汽化液化复习题1．A 2．D 3．A 4．C 5．D 6．C 7．A 8．B 9．B 1O．D 11．C 12．A 13．D 14．C 15．C 16．(1)海洋水陆地淡水冰川水地下淡水(2)海洋水冰川水17．氧气氢气氢和氧18．增大相等密度19．向上物体排开的液体受到的重力20．增大不变21．2.5×104 22．(1)不饱和(2)升高温度或加水23．(1)溶质溶剂(2)物质溶解能力与温度的关系24．盐水密度增大，马铃薯会上浮而不会下沉，与现象不符合错误大于25．(1)常温下苯甲酸的溶解度很小(2)温度高时苯甲酸溶解得多(3)缓慢冷却到室温26．(1)增大减小(2)等于(3)210.5 27．0.9×103千克/米3 28．59.3毫升960.8克29．(1)p=833千帕因p>p0，所以，该车对路面的压强超过规定值(2)过大的压强损坏路面，且质量过大(车的惯性大)，不好操纵，易出交通事故。
30．(1)水面离“0牛”刻度线的距离h与物重G成正比(2)7 (3)10牛第2章地球的“外衣”——大气第1节大气层1．1000 2．(1)①对流层②平流层③中间层④暖层⑤外层(2)①③②④(3)大气具有强烈的对流运动(4)②3．A 4．A 5．D 6．B 7．D 8．(1)略(2)3.6 (3)-8 9．乙杯中的空气会对流第2节天气和气温1．温度湿度2．气温冷热3．温度计摄氏度(℃) 4．普通最高最低一天中的气温是在不断变化的5．(1)午后2时日出前后(2)天气6．D 7．C 8．A 9．(7+15+13+5)÷4=10第3节大气的压强1．大气压2．10.1牛3．流速流速4．C 5．A 6．B 7．A 8.B 9．C 10．C 11．9×104帕12．略第4节大气压与人类生活1．大气压大气压2．大于高于3．零降低4．增大正在沸腾的水停止沸腾减小停止沸腾的水重新沸腾液体的沸点与气压有关，气压增大，沸点升高5．D 6．C 7.C 8.B 9．A 10．A 11．减小大气压增大12．②②③⑤第5节风1．(1)× (2)× (3)√ 2．吹来八3．A-西北风B-北风C-东北风D-东风E-东南风F-南风G-西南风H-西风4．空气流动风级5．B 6．A 7．D 8.A 9．A 10．略第6节为什么会降水1．(1)× (2)× (3)√ (4)√ 2．(1)干湿差：A-2 B-5 C-1 D-3 E-4 F-5 (2)相对湿度：A-71 B-44 C-90 D-74 E-68 F-6l (3)C>D>A>E>F>B 3．D 4.C 5．A 6．B 7．(1)家鸡性喜干燥，雨前鸡笼里特别湿闷，所以它不愿意早进笼去。
大学英语综合教程答案
英语综合训练一单元C.She graduated from college at a very advanced age.A.pursue a higher degree.D.the link between loudness and hearing loss.D.about half of them listen to music above safe sound levels.B.she is driving to visit her relatives.B.the radiator is too hot.C.the water level is too low in the radiator.A.keep a bottle of water in her car at any time.D.It was a terrible experience in some ways.C.she thinks the man better than her as a tourist.A.the travel agent didn't warn him of the hot weather.D.the foreign food didn't agree with him.D.he was a professor of engineering.A.he invented the refrigerator.C.he clearly knew what he wanted for himself.C.some young Japanese's different lifestyle.D.they are willing to choose short-term,part-time jobsD.people will have no money to support retirement.C.she like she brother was not as englishA.those creative in their workB.She graduated from universities with high standardsC.She actually said nothing to him but thanksD.DeterminationD.. He gives students in using proper techniques for their studyB.more students have chosen to stay in schoolB.write about their past,present and future livesA.the students were all making good progress in their study.C.minority people are not as rich and educated as those in the majority 二单元B.the salaries for-profit private college graduates can earnD.8000D.they are not emotionally ready for collegeC.how to deal with social and life challengesB.he went to train for tennisB.basketball is not his favorite sportsC.he accepted his son’s decision with reasonD.watch his former teammates playA.psychologistC.both men and women have this problemB.something excitingA.by self-questioningC.a possible reason for decision-making stylesD.she gives them responsibilitiesA.they can’t make their own decisionD.he will surely have no points for the examA.students should ask questions and join discussionsC.once a weekA.he didn’t want children because he didn’t think they could bring happinessB.his son is from his wife’s previous marriageA.they had a very bad taste for musicD.he believes he’s being punished as a father missing his son now D.he is sad and disappointed that my son does not show upB.he had to plan his own time for his life and studyD.quite similar socially to living back in chinaB.the number has increased about ten times compared with six years ago D.trying new learning and cultural experiencesA.whether chinese students are experiencing something new is questionable三单元C.he saved the lives of 699 mostly jewish children from the nizis B.through a BBC TV programB.the sufferings of children in warD.the governments will consider using money for warsD.she cannot keep up with the courseA.he tries to be helpful to herC.it wasn’t done as well as expectedD.talk to her professorB.he is open to ideas and picks the one that worksA.to hire a new managerC.untidyB.when he needs to do writingC.everyone should take exercise regularlyB.we think the quality of food is importantA.many of us are willing to pay more for health foodnguageD.they feel they are members of the same groupC.slang comes and goes after trial periodB.it was written by a little girl hiding away during the nizi occupation A.it was caused by the unreasonable opinion of some murderersC.they are like people he feel comfortable with in his lifeB.living every day with hopeB.believing in the goodness of human natureA.war has become more destructive with modern weaponsD.the targets of war have changed form soldiers only to civilian as well D.the sufferings of childrenA.the money was spent at the cost of education servicesC.it can affect the quality of life for many years and generation.四单元C.Progress in bringing a climate agreement into effect.B.To take actions for low carbon development.C.It has suffered the worst election losses.B.The opposition party used Mandela to win trust.A.Planning an overseas tripD.In July.B.Eating outD.Visiting rural Italy.B.To find a summer jobA.He checked some websites.C.It's a bit risky to work thereC.A ski schoolC.Foods that can help to improve health.D.It helps a child's brain developD.Most children had healthy iodine levels.C.His life experiences.B.He could get away from the war.A.He gave lectures around the country.C.we all can develop leadership skills like these peopleA.They share, listen and improve their ideas for a better society D.It makes a difference in achieving group goalsC.people need to work as a team for help and supportA.He should be able to motivate others for a common goal.B.he viewed this offer as special treatment for himD.Uncomfortable.C.a man who cares a lot about his appearanceB.he wanted to challenge the court as a black AfricanD.the supporters were in low spirits and felt hopeless五单元C.Water is linked to creating jobs and conditions of work.D.Unequal water resources.A.A study of Asia's water problems and their causes.D.Human and natural factors.C.His computer is not back as expectedB.a customer service representativeB.there is a delay in their serviceC.to have his computer returned soonA.his future planC.to live comfortably ang freelyD.they will have accent training and cultural learningA.he needs to go and study hardA.teaching to encourage active learningD.by working with and observing kidsB.Direct experience is what students truly needC.People do not experience local culture.D.It allows a free stay to travel around the world.C.He considers meeting friendly people the best part.C.people can do anything to water but destroy itB.drought caused the soil to turn to waves of dustD.the passage of the Clean Water ActB.there was a nationwide movement for water protection B.whether to increase supply or to use water responsiblyD.A drought is taking place as a heat wave hits the vast areas.A.Groundwater levels in northern India fell.D.They have supplied sand for construction projects.A.prioritize the country's water needs in his development plan 六单元C.They are hit by vehicles in streets in surging numberA.Putting up warning signsB.Too much social media use harms children's mental health.D.They can't tell online worlds from the real world.B.they have been working hard.C.to finish reviewingB.it is a new funny movieD.to study the last topic leftB.Friendly.A.By using socialD.For getting to know the other person.A.To be more understanding.A.Learning by playing games.D.It was not fun but painful.B.Goal-driven effort is needed for fun.C.He used natives cruelly for his business.A.A mapmaker used it in memory of an explorer.D.Leif Erikson.D.texting reduced course grade by half a letter on averageA.students using their cellphones could lose one pointC.it works for a short while before most students but not with others B.they had faster heartbeat when unable to answer the phoneA.students are allowed to check their phone every 15 or more minutes D.talking to people and improving social skillsB.Taking risks and having courage to communicateD.Having more time for what to say.A.It is highly personal and scary.C.teens will grow up not knowing how to talk in person。
儿童谜语大全及答案
儿童谜语大全及答案1、俊美无匹却为妖，贵气逼人毒华爪（打一动漫人物）——谜底：杀生丸2、灰溜溜，走到哪跟到哪（打一名词）——谜底：影子3、李大爷的鸽子在张阿婆家下了个蛋，这个蛋属谁的？——谜底：鸽子的4、模样像桶又像帽，花草泥巴来报道。
（打一物）——谜底：花盆5、青枝绿叶颗颗桃，外面骨头里面毛，待到一天桃子老，里面骨头外面毛。
（打一植物）——谜底：棉花6、小强最会撒谎，可为什么他的朋友都说他是诚实的孩子呢？——谜底：都被小强骗的7、脚穿一双特制鞋，尺码大得没了边，冰天雪地向前跑，速度快得像射箭（打一体育运动）——谜底：滑雪8、四四方方一间房，只见有人不见床，一会升来一会降，人来人往上下忙（打一建筑设施）——谜底：电梯9、超市里面最值钱的东西是什么？——谜底：收银机10、兄弟姐妹一般高，放到水里软了腰。
洁白光韧身材好，煮熟尝尝味道妙（打一食品）——谜底：挂面11、天旱（猜一字）——谜底：沙（少水）12、天上无二，合去一口，家家都有，猜一字——谜底：人13、憨憨一小老头，不会跑来不会走。
让他躺下睡，他就猛摇头。
（打一物）——谜底：不倒翁14、五个青铜美男一生围绕着智慧女神转（打一动画片）——谜底：《圣斗士星矢》15、圆圆小铁汉，肚里盛着电，不要随处仍，小心有污染（打一日用品）——谜底：电池16、人送绰号小叮当，微笑大嘴可爱样（打一卡通人物）——谜底：哆啦A梦17、千姊妹，万姊妹，同床睡，各盖被（打一水果）——谜底：石榴18、不能口头推荐淮阴侯探骊格——谜底：应用文·介绍信19、说它像蛇，它不像，头和尾巴都一样，人们用它来健身，跳来跳去乐欢喜——谜底：跳绳20、森林医生很忙碌，爱吃虫子爱敲木（打一动物）——谜底：啄木鸟21、灯笼里面藏棉花，棉花裹着小月牙。
剥开月牙见白豆，灯笼得用竹竿打。
（打一水果）——谜底：柚子22、不用挂蚊帐的王子（打一童话角色）——谜底：青蛙王子23、与其给我飞吻，何若让我依偎在你身旁。
第3章习题答案
练习题：1.单项选择⑴当砼预制桩的设计间距大于4倍桩直径（或边长）时，宜采用的打桩顺序为（ A）。
A．逐排打设Ｂ．自中间向四周打设Ｃ．自四周向中间打设Ｄ．逐排打设⑵摩擦桩型的预制桩在沉桩时，主要质量控制指标是（Ｂ）。
Ａ．最后贯入度Ｂ．设计标高Ｃ．垂直度Ｄ．平面位置⑶在周围建筑物密集的狭窄场地施工大直径砼灌注桩，较宜采用（Ａ）。
Ａ．钻孔灌注桩Ｂ．沉管灌注桩Ｃ．人工挖孔灌注桩Ｄ．爆扩灌注桩3．填空题：（1）泥浆护壁钻孔灌注桩成孔施工时，泥浆的作用是：（护壁、携砂、排土、降低钻头温度）。
（2）钢筋砼预制桩的打桩顺序一般有：（逐排打设）、（自中间向四周打设）、（有中间向两边打）。
（3）桩锤重量可按那几个因素来选择：（地质条件）、（工程结构）、（桩的类型）。
密集程度及施工条件（4）预制打入桩垂直度偏差应控制在（ 100mm ）以内。
（5）入土深度控制对摩擦桩应以（设计标高）为主，以（最后贯入度）作为参考。
端承桩应以（最后贯入度）为主。
（6）钻孔灌注桩钻孔时的泥浆循环工艺有（正循环、反循环）两种，其中（反循环）工艺的泥浆上流速度高，携土能力大。
（7）打入桩施工时，当桩间距（当桩中心距小于等于4倍桩长或桩径时）时，一定要确定合理的打桩顺序。
（2）若按施工方法分，预制桩可划分为（打入法）、（静压法）（8）预制桩吊点设计的原则是：（平稳，避免冲击和振动）。
（9）桩架的作用是（导向）、（固定桩的位置）、（承受桩锤重量）。
（10）预制桩接桩的方法有：（焊接法）、（浆锚法）、（法兰接桩）。
（11）打入桩施工时，宜采用的打桩方法：（重锤低击）。
（12）套管成孔灌注桩施工时，为提高桩的质量，提高桩的承载力，经常采用（复打法施工）。
（13）水下浇筑砼经常采用的方法是（导管法）。
（14）砼预制桩应在砼达到设计强度的（75%）后方可起吊，达到设计强度的100%后方可（运输）和（打设）。
（15）沉管灌注桩施工时，常遇问题有：（断桩）、（缩颈）、（吊脚桩）（砼过量）。
英语课后答案
英语课后答案Unit 11.How did Jimmy get his brain damaged?A:He did not get enough oxygen during a difficult delivery,leaving him with brain damage.2. How did the writer describe her father?A:She described her father as a saint,simply held the house together with his patience and understanding.3. How close was the relationship between Jimmy and his father ?A:They were inseparable, almost doing everything together.They ate breakfast together and on weekdays drove off to the navy shipping center every morning where they both worked—Jimmy unloaded color-coded boxes.At night after dinner, they would talk and play games late into the evening.They even whistled the same tunes.4. How much was Jimmy changed after his father’s death?A:He was changed almost completely. He came and lived with me in New York City for a while.He went wherever I went and seemed to adjust pretty well.Still, Jimmy longed to live in my parents' house and work at his old job and I pledged to help him return.5. How did Jimmy get along after he left New York City to live in his parents’ house ?A: He has lived there for 11 years now with many different caretakers and blossomed on his own ,and has become essential to the neighborhood.When you have any mail to be picked up or your dog needs walking, he is your man.6. What did the writer think of her caring for Jimmy?A:She thought that caring for Jimmy has enriched her life more than anything else ever could have.7. Why did the writer invite her friends to Jimmy’s birthday party?A:None of our family could join us because travel was difficult and they were still reckoning with the sheer terror the disaster had brought,so she called on her faithful friends and hoped that their coming would help make the party a merry and festive occasion.8. What did the party remind the writer and her friends of ?A:They were reminded that the constant love and support of friends and family would get them through whatever life might present.Unit 31. What principle does the Hyde School operate on?A:It operates on the principle that if you teach students the merit of such values as truth, courage, integrity, leadership, curiosity and concern, then academic achievement naturally follows.2,What is the Hyde School famous for?A:It has received considerable publicity for its work with troubled youngsters.3. Why was the first Hyde public program suspended within months？A:Because teachers protested the program’s demands and the strain associated with more intense work.4.How is the Hyde curriculum different from conventional schools that provide preparation for college?A:In the Hyde School, all students are required to take performing arts and sports, and provide a community service. For each course, students get a grade for academic achievement and for “best effort”.5.What must parents do for their children to gain admission?A:Parents must agree to accept and demonstrate the school’s philosophies and outlook.6.What is the biggest obstacle for many parents?A:The biggest obstacle for many parents is to realize their own weaknesses.Uint41)What are the five symbols of the United States?A:They are the Statue of Liberty, Barbie dolls, American Gothic, the Buffalo nickel,and Uncle Sam2) Whose face was the Statue of Liberty?A:It was modeled after Bartholdi mothers face.3)Who is the queen of the dolls?A:It is Barbie.4)According to the text, how popular is Barbie?A:Since her introduction in 1959, she has become the universally recognized queen of the dolls. The average American girl owns ten Barbies and two are sold somewhere in the world every second.5)Who painted American Gothic?A:Grant wood.6)What was the Buffalo nickel produced for?A:It honored a pair of connected tragedies from the settlement of the American frontier—the destruction of the buffalo herds and the American Indians.Unit61.What have the scientists done in Japan in order to detect movements? A: They have wired the Earth and sea to detect movements.2. What have the Chinese people traditionally done about earthquakes? A: They have traditionally watched animals and plants for warning signs of earthquakes. For example, the Chinese have noted that before an earthquake, hens' behavior changes—they refuse to enter their cages at night.They have also noticed that snakes come out of the ground to freeze to death and that dogs bark a lot, even normally quiet dogs.3. How are most of the people killed in earthquakes?A: They are killed by falling buildings.4. What do architects so to prevent property damage?A: They design buildings so that the buildings’ columns and horizontal beams are equal are of equal strength, and vertical support columns are inserted deep into solid soil.5. What should people in areas where earthquakes are common do to prepare their houses?A: They should regularly check and reinforce homes, place heavy objects in low positions, attach cupboards and cabinets to walls, and fasten doors so that they will not open accidentally during an earthquake.6. Why are people in these regions suggested to prepare something that can clean water and kill bacteria?A: To make water from other sources safe to drink.7. What is the sensible way to keep all the family members informed of each other in a large earthquake-stricken city?A: To have all of the family members call to check in with a friends or relative who lives more than a hundred miles away. 8. What should be a major emphasis for all government programs and earthquake-related research projects?A: Education concerning how to survive an earthquake should be a major emphasis for all government programs andearthquake-related research projects.Unit 81)When people heard about Dolly, what did they think was within reach?A:People think that a world with human clones was suddenly within reach.2) How did the American government react to cloning?A:President Clinton ordered a national commission to study the legal and moral implication of cloning.3） According to the writer, why are twins more alike than clones? A:Because twins have at least shared the same environment within the mother, are usually raised in the same family, and so forth.4） What are the Dolly researchers unsure of?A:Whether Dolly will be able to give birth to lambs5） Why do some parents want to save their fatally ill child through cloning?A:Because cloning would increase the chances for a tissue match 25 percent to nearly 100 percent.6)Why might pigs be cloned and used as organ donors?A:Because pigs have organs similar in size to humans.But the human body attacks and destroys tissue from other species.7)According to Judith Martin, how should a human clone refer to its DNA donor?A:It might be proper to refer to them as”Most honored sir or madam”.8)What is the gravest concern about human cloning for society?A:The gravest concern isn't really cloning itself, but genetic engineering—the deliberate altering of genes to create human beings according to certain requirements.Specifically, some experts are concerned about the creation of a new (and disrespected) social class: "the clones".Unit101.What did the writer think of Aunt Carrie at the beginning of the story? A: He thought that Aunt Carrie was his favorite relative and favorite authority figure, and she was always free with smiles, words of praise and excuses of misdoings.2.How did the writer feel about the first comparisons between him and John? A:He did not feel good about it, because his first day was disastrous and John's went well.3.How different were john and writer in learning mathematics?A:John advanced quickly in mathematics while the writer was slow.4.What’s the writer’ s attitude towards the comparisons?A:He took them as a challenge although disliked them and began at last to look round for something that I could dowell.When he discovered that he could write well,he worked with intensity at his craft, minding nothing else.Let this be mine, John Bullyer could have all the rest5.What did the writer think about his own stories?A:He thought that his stories were an extension of his own desires to rise above John Bullyer.(The stories that he invented were mostly technological and science fiction in nature.They told of rockets and spacecraft, things that would take men high up into the sky.After some analysis of my personality, he realized that my stories were an extension of his own desires to rise to higher and higher altitudes, until he was above John Bullyer)6.How did the writer learn about john in the later year?A:He learned about John mainly through newspapers.7.How did john and the writer think of each other before they meet in a club?A:They both thought that the other was taller, smarter, and more handsome.8.How did the writer and john finally feel about their life competition? A: Both of them were finally positive about their life competition, because they both felt grateful to their aunt.。
水力学答案
第四章 思考题:4-1：N-S 方程的物理意义是什么？适用条件是什么？物理意义：N-S 方程的精确解虽然不多，但能揭示实际液体流动的本质特征，同时也作为检验和校核其他近似方程的依据，探讨复杂问题和新的理论问题的参考点和出发点。
适用条件：不可压缩均质实际液体流动。
4-2 何为有势流?有势流与有旋流有何区别?答:从静止开始的理想液体的运动是有势流. 有势流无自身旋转,不存在使其运动的力矩.4—3 有势流的特点是什么？研究平面势流有何意义？有势流是无旋流，旋转角速度为零。
研究平面势流可以简化水力学模型，使问题变得简单且于实际问题相符，通过研究平面势流可以为我们分析复杂的水力学问题。
4-4.流速势函数存在的充分必要条件是流动无旋，即xu y u yx ∂∂=∂∂时存在势函数，存在势函数时无旋。
流函数存在的充分必要条件是平面不可压缩液体的连续性方程，即就是0=∂∂+∂∂yu x u yx存在流函数。
4—5何为流网，其特征是什么？绘制流网的原理是什么 ？流网：等势线（流速势函数的等值线）和流线（流函数的等值线）相互正交所形成的网格 流网特征：（1）流网是正交网格（2）流网中的每一网格边长之比，等于流速势函数与流函数增值之比。
（3）流网中的每个网格均为曲线正方形 原理:自由表面是一条流线，而等势线垂直于流线。
根据入流断面何处流断面的已知条件来确定断面上 流线的位置。
4-6.利用流网可以进行哪些水力计算?如何计算？解:可以计算速度和压强。
计算如下：流场中任意相邻之间的单宽流量∆q 是一常数。
在流场中任取1、2两点，设流速为，，两端面处流线间距为∆m1，∆。
则∆q=∆m1=∆，在流网中，各点处网格的∆m 值可以直接量出来，根据上式就可以得出速度的相对变化关系。
如果流畅中某点速度已知，就可以其他各点的速度。
流畅中的压强分布，可应用能量方程求得。
z1++=++当两点位置高度z1和为已知，速度，u2已通过流亡求出时，则两点的压强差为-=-+-如果流畅中某一点压强已知，则其他个点压强均可求得4.7利用流网计算平面势流的依据是什么？（参考4.6的解释）4-8流网的形状与哪些因素有关？网格的疏密取决于什么因素？答：流网由等势线和流线构成，流网的形状与流函数φ（x,y）和流速势函数ψ(x,y)有关；由∆q=∆ψ=常数，∆q=u1∆m1=常数，得两条流线的间距愈大，则速度愈小，若间距愈小，则速度愈大。
精选100个简单幼儿谜语大全附答案
001、五个兄弟，住在⼀起，名字不同，⾼矮不齐。
【谜底】⼿指 002、⼀个⿊孩，从不开⼝，要是开⼝，掉出⾆头。
【谜底】⽠籽 003、⼈脱⾐服，它穿⾐服，⼈脱帽⼦，它戴帽⼦。
【谜底】⾐帽架 004、屋⼦⽅⽅，有门没窗，屋外热烘，屋⾥冰霜。
【谜底】冰箱 005、两只⼩⼝袋，天天随⾝带，要是少⼀只，就把⼈笑坏。
【谜底】袜⼦ 006、弟兄七⼋个，围着柱⼦坐，只要⼀分开，⾐服就扯破。
【谜底】蒜 007、独⽊造⾼楼，没⽡没砖头，⼈在⽔下⾛，⽔在⼈上流。
【谜底】⾬伞 008、⾝穿⼤⽪袄，野草吃个饱，过了严冬天，献出⼀⾝⽑。
【谜底】绵⽺ 009、⼀个⼩姑娘，⽣在⽔中央，⾝穿粉红衫，坐在绿船上。
【谜底】荷花 010、颜⾊⽩如雪，⾝⼦硬如铁，⼀⽇洗三遍，夜晚柜中歇。
【谜底】碗 011、有⾯没有⼝，有脚没有⼿，虽有四只脚，⾃⼰不会⾛。
【谜底】桌⼦ 012、⽩嫩⼩宝宝，洗澡吹泡泡，洗洗⾝体⼩，再洗不见了。
【谜底】⾹皂 013、⾝穿绿⾐裳，肚⾥⽔汪汪，⽣的⼦⼉多，个个⿊脸膛。
【谜底】西⽠ 014、不怕细菌⼩，有它能看到，化验需要它，科研不可少。
【谜底】显微镜 015、象只⼤蝎⼦，抱起似孩⼦，抓挠肚肠⼦，唱出好曲⼦。
【谜底】琵琶 016、是笔不能画，和电是⼀家，要知有⽆电，可去请教它。
【谜底】测电笔 017、圆筒⽩浆糊，早晚挤⼀股，兄弟三⼗⼆，都说有好处。
【谜底】⽛膏 018、上不怕⽔，下不怕⽕;家家厨房，都有⼀个 (打⼀⽣活⽤品)。
【谜底】锅 019、⼀个⽼头，不跑不⾛;请他睡觉，他就摇头 (打⼀物)。
【谜底】不倒翁 020、⼤姐⽤针不⽤线，⼆姐⽤线不⽤针，三姐点灯不⼲活，四姐做活不点灯。
(打四种动物)【谜底】蜜蜂，蜘蛛，萤⽕⾍，纺织娘 021、驼背公公，⼒⼤⽆穷;爱驮什么车⽔马龙(打⼀物)。
【谜底】桥 022、头戴红帽⼦，⾝披五彩⾐，从来不唱戏，喜欢吊嗓⼦(打⼀动物)。
【谜底】公鸡 023、先修⼗字街，在修⽉花台，⾝⼦不⽤动，⼝粮⾃动来(打⼀动物)。
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2.618年春，隋炀帝（杨广）在江都（今扬州）被部将杀死，隋朝灭亡。
隋朝官员李渊和儿子李世民在晋阳（今太原）起兵反隋，率部众攻入长安，618年建立唐朝。
唐朝沿用并发展了隋朝的三省六部制、科举制（以进士科最为主要）。
3. 唐太宗遵从“兼听则明，偏信则暗”的古训，基本上做到了广开言路。
他任命富于谋略的房玄龄和善断大事的杜如晦做宰相，人称“房谋杜断”。
重用敢于直言的魏征为著名的谏臣（以人为镜）。
6. 唐太宗实施的实现贞观之治的措施（治国之策）政治上选用良吏，提高行政效能长孙无忌、房玄龄、杜如晦、魏征；改革三省六部经济上轻徭薄赋，减轻农民负担允许农民交纳一定的丝绢或麻布代替徭役法律上简法轻刑，修订法律《贞观律》教育上重视教育，大力培养人才国子学、太学民族关系上实行恩威并施的政策，改善民族关系天可汗4.唐玄宗实施的实现开元盛世的措施(1)任用贤能：起用一批有德有才的人，淘汰腐败无能的官员（召集县令考试，罢免不合格者）；(2)发展生产：鼓励扩大耕地面积，号召兴修水利；(3)整理财政：下令整理财政，清理土地和户口，让逃亡者重新登记户口，纳税服役，但可免交几年赋税；(4)简法轻刑：按照唐太宗“宽仁”的原则，废除了武则天时代的酷刑苛法；(5)倡导节俭：遣散一批宫女，销毁宫中的大批锦绣珠玉，抑制奢侈。
5. 阅读：比较唐太宗与唐玄宗统治者经济政治及其他结果唐太宗重视农业生产。
采取轻徭薄赋政策，减轻农民负担，有力推行以实物代替徭役的制度重视纳谏；选贤用能；减法轻刑；重视教育；改善民族关系形成了贞观之治的局面唐玄宗重视农业生产。
采取鼓励垦荒，兴修水利，整理财政，清理土地、户口等办法积极纳谏；选贤用能；减法轻刑；倡导节俭（统治初期）唐朝进入鼎盛时期，形成了开元盛世的局面5. 阅读：隋朝与秦朝的相似之处有哪些？(1)建立背景：都是结束了长期分裂局面，实现了国家的统一；(2)政权特点：都采取新的措施来加强专制主义的中央集权；(3)存在时间：都很短暂，二世而亡；(4)灭亡原因：都因为统治者的暴政，被农民起义推翻；(5)大型工程：都修筑了大型工程，秦长城和隋大运河；(6)历史地位：都起到了承上启下的作用，灭亡教训为后来的统治者借鉴，出现封建社会的盛世。
2. “政由己出，明察善断，故当时英贤亦竟为之用”。
(1)这是《资治通鉴》对唐朝哪位皇帝的评价？ (2)这位皇帝在我国历史上的地位是什么？(3)被这位皇帝发现和提拔的著名人物是哪两位？ (4)该皇帝统治期间，唐朝的经济文化状况如何？17.阅读下列材料【材料一】北宋东京城内人口稠密，居民超过百万，是中国最大的城市，城里买卖和居住的地方已经分不清，随处可开设商店，……商品可以在白天、夜间交易，三鼓以后还可夜市，通晓不绝。
——大河网一河南日报【材料二】(南宋临安城)“自大街及诸坊巷，大小铺席，连门俱是，无空虚之屋”——宋·昊自牧《梦粱录》【材料三】国家根本，仰给东南。
——《宋史》请回答：(1)从材料一中可以看出，北宋东京的商业繁荣有哪些特点?（3分）(2)材料二说的是什么现象?（1分）(3)材料三中“国家根本，仰给东南”。
说明了什么?出现这一现象的原因有哪些?（4分）18.唐太宗、康熙、乾隆是我国古代较为杰出的帝王，“贞观之治”、“康乾盛世”至今还为人们津津乐道。
唐太宗 康熙像 乾隆皇帝大阅图(1)你认为评价封建盛世的“指标”应该包括哪些要素? （3分）(2)唐太宗特别重视和谐民族关系。
他在位时期执行的是怎样的民族政策?采取了哪些有效治理的办法? （2分）17. (1)人口稠密；最大的都市；买卖区与居住区分不清，商品交易时间长等。
(2)临安城内店铺林立，贸易兴盛(商业繁荣，买卖兴盛等)。
(3)现象：国家的经济重心移至南方(国家财政依赖于南方)。
原因：①南方战乱较少，社会安定。
②许多中原人南迁，带去了先进的技术，增加了那里的劳动力。
③南方具有优越的自然环境。
18. (1)如国家统一、经济繁荣、文化昌盛、社会稳定、人丁兴旺、民族和谐等。
(2)恩威并施。
和亲、封赏、派兵迎击进攻内地少数民族等办法。
唐太宗时候，进士科的地位日益提高，考进士科的人数比其他科多，录取比较严格。
不少人从少年考到白头仍未中进士。
后来有人作诗说：“太宗皇帝真长策，赚得英雄尽白头。
”唐太宗在金殿端门见到新科进士鱼贯而入，得意地说：“天下英雄，入吾彀中矣。
”（入彀：被收罗笼络的意思）(1)我国古代科举制度是在哪一朝代形成的？这种制度的基本特征是什么？唐朝科举分哪两大类？ 答：隋朝。
分科考试，择优录取。
常科（最重要的科目：进士科和明经科）和制举。
(2)科举制度的出现表明我国古代选官制度发生了什么样的变化？这一制度的实行对扩大封建统治基础有什么作用？与世袭制、九品中正制相比，科举制度有何进步性？ 答：表明我国古代的选官制度已从推荐考察为主转变为以考试为主。
使一批有真才实学的人进入各级政权。
较为公开公平。
2. 唐朝通过哪些方式加强与少数民族的联系？答：①联姻（唐与吐蕃、回纥）；②册封（唐与回纥、南诏）；③会盟（唐与吐蕃）；④经济往来；⑤文化交流。
3. “自古皆贵中华，贱夷狄，朕独爱之如一。
”(1)这段材料的主要意思是什么？是唐朝哪位皇帝说的？答：过去的统治者只重视中原汉族，轻视边疆的少数民族，我与他们不同，我对各民族一视同仁。
唐太宗。
(2)他对少数民族实行了什么政策？这位皇帝被各族首领拥戴为什么？答：一视同仁、开明、 恩威并施的政策。
“天可汗”。
4. 材料一 “外甥是先皇帝舅宿亲，又蒙降金城公主，遂和同为一家。
天下百姓，普皆安乐。
”——尺带珠丹致唐朝皇帝的上书材料二 “自古皆贵中华，贱夷狄，朕独爱之如一。
”——唐太宗的话(1)材料一反映了唐朝与哪个民族的友好关系？唐朝与这个民族“和同为一家”的另一史实是什么？ 答：唐朝与吐蕃。
唐太宗把文成公主嫁给松赞干布。
(2)材料二表明了唐朝在处理少数民族问题上的政策是怎样的？答：一视同仁，开明, 恩威并施。
(3)根据以上材料所提供的信息，你对唐朝的少数民族政策有什么看法？答：这是一种开明务实的政策，促进了民族友好交往，很值得提倡。
1. 阅读：唐朝是一个开放的社会，唐朝实行开放政策的原因是什么？答：唐朝是当时世界上的大国，具有先进的政治制度、安定的社会环境、繁荣的经济、光辉灿烂的文化，是当时东西方经济文化交流的中心，对周边国家具有强烈的吸引力。
2. 阅读：唐朝开放政策的表现有哪些？答：选官制度开放、民族政策开放、对外交往开放、文学艺术开放。
3. 请举出唐朝时对外交往中有代表性的事件（不少于三件）。
答：①日本遣唐使来华（唐朝时，日本官方十多次派使节到唐朝访问，其代表人物有空海、阿倍仲麻吕和吉备真备）；②鉴真东渡日本（唐玄宗时，高僧鉴真应日本佛教界邀请，东渡日本，讲授佛学理论，传播博大精深的中国文化，促进了日本佛学、医学、建筑和雕塑水平的提高，为中日两国的交流做出突出贡献，留下了唐招提寺和干漆坐像，被定为日本的国宝）；③玄奘西行天竺（中国古代称印度半岛为天竺。
唐朝时僧人玄奘从长安出发，到天竺学习佛学，求取佛经，他和他的弟子还把旅途见闻写成《大唐西域记》）；④天竺熬糖法传入中国（唐太宗时）。
4. (1)请你说出图中两位历史人物是谁？答：左图是鉴真，右图是玄奘。
(2)这两位历史人物都在某些领域做出了杰出的贡献，请你说说哪些是他们共同的贡献？答：都弘扬、传播了佛教文化，都促进了中外文化交流。
(3)他们具有的哪些优秀品质是值得我们学习的？答：有远大的理想，不辞辛劳，不畏艰险，百折不挠。
————————————————————————————1.各族政权简表名称（国号）都城民族建立者兴亡亡于契丹（辽）上京契丹耶律阿保机916-1125 金北宋东京（今开封）汉赵匡胤960-1127 金西夏兴庆（今银川）党项元昊1038-1227 蒙古金中都（今北京）女真完颜阿骨打1115-1234 蒙古南宋临安（今杭州）汉赵构1127-1276 元3. 评价宋与辽、西夏、金的几个和约。
答：积极：这些和议的达成，使双方边境相对稳定，经济文化交流频繁，促进双方的发展。
消极：宋给辽、西夏、金岁币，加重了宋的负担。
4. 辽、西夏与北宋的战与和给各方带来怎样的影响？答：战争不利于人民的生产和生活。
和议使双方相对稳定，促进了各自发展。
2. 我国古代经济重心南移的过程和主要原因，对我们有何启示。
原因：①北方人口的大量南迁；②南方相对安定的政治环境；③自然资源得到更多地开发和利用。
过程：从三国时期起，我国经济重心逐渐南移。
唐朝中期以后，转移的速度加快。
两宋时，南方已成为全国经济的重心。
启示：国家统一、社会安定是经济发展的重要保证。
1. 南宋诗人陆游在一篇文章中说：“朝廷在故都时，实仰东南财赋。
”①“故都”指哪里，是今何处？答：“故都”指“东京”，今开封。
②国家财政收入依靠“东南财赋”，说明了什么？答：说明江南经济发展，成为南宋财政收入的主要支柱，南方已成为全国经济的重心。
③形成这一现象的原因有哪些？答：北方人口的大量南迁；南方相对安定的政治环境；自然资源得到更多地开发和利用。
2. 谚语“苏湖熟，天下足”。
(1)这是什么时期的谚语？ (2)“苏湖”分别指什么地方？(3)“苏湖熟，天下足”说明了什么历史现象？答：南宋。
苏州、湖州。
太湖流域经济发达，经济重心转移到南方。
3. 两宋时期，在气候温和、资源丰富的南方，形成了闻名天下的“粮仓”，培育出新的手工行业，出现了世界上最早的纸币。
(1)有一句南宋谚语反映了盛产水稻的南方一些地方形成了天下闻名的“粮仓”，请写出这句谚语。
新的手工行业指的是什么？答：“苏湖熟，天下足”。
棉纺织业。
(2)世界上最早的纸币出现在北宋的什么地区？名称是什么？南宋时，发行的纸币称为什么？答：四川。
交子。
会子。
6. 今天的传统节日，像春节、元宵节、端午节、中秋节等，在宋代都有了。
宋代称春节为元旦，最为重视。
元旦、寒食、冬至是宋代的三大节日。
1. 简述宋代商品经济发展的特点。
(1)都市商业繁荣（北宋东京，今开封；南宋临安，今杭州），大街小巷店铺林立；(2)经营时间长，夜市刚结束，晓市又开张；(3)娱乐活动商业化（北宋瓦子，南宋瓦舍）；(4)纸币的出现（交子、会子），方便了商业贸易；(5)对外贸易活跃（港口：广州、泉州；机构：市舶司）。
2. 山外青山楼外楼，西湖歌舞几时休？暖风熏得游人醉，直把杭州作汴州。
——林升《题临安邸》(1)这首诗讽刺的是哪朝统治者荒淫腐化，只图偏安江南，不思恢复北方失地和中原故都的丑态？(2)杭州在当时叫什么？答：临安。
答：南宋。
(3)汴州在当时叫什么？今天的地名是什么？答：东京。
开封。
3. 材料一宋高宗说：“市舶之利最厚，若措置得宜，所得动以百万计。