课后习题参考答案 (1)
外科护理学
第九章损伤病人的护理
一、名词解释
1、创伤：机械性致伤因子所致的损伤，又称创伤。
2、一期愈合：又称原发愈合。边缘整齐、对合良好，缝合后能顺利愈合的伤口。组织修复以原来的细胞为主，连接处仅有少量纤维组织。愈合后功能良好。
二、选择题
A1/A2型题
1、现场急救严重损伤病人首先应:C
A、抗休克
B、包扎伤口
C、解除窒息
D、镇解止痛
2、促使感染伤口尽早愈合最关键的是：C
A、抬高患肢
B、局部制动
C、应用抗生素
D、充分引流
3、大面积烧伤病人48小时内最重要的全身改变是:C
A、创面脓毒症
B、急性肾功衰
C、低血容量性休克
D、菌血症
4、Ⅲ°烧伤时下列哪项不出现：D
A、痛觉消失
B、皮肤发黄
C、有焦痂
D、有大水疱
5、防治烧伤后严重感染的关键是：B
A、选用有效的抗菌药
B、正确处理创面
C、全身支持治疗
D、做好心理护理
6、男，4岁，双下肢，双臂烧伤3小时来诊，患儿哭闹不止，创面有大水疱，疱型较薄，基底潮红，水肿明显，以下判断不正确的是：A
A、烧伤面积46%
B、浅Ⅱ度烧伤
C、需住院治疗
D、必需抗休克
7、抢救伤员时应当首先处理：C
A、休克
B、止血
C、窒息
D、骨折
8、女性年轻病人下楼时不慎致踝关节扭伤，2小时后来医院就诊，你如何处理：B
A、局部用热水袋
B、局部用冰袋
C、用热水泡脚
D、局部按摩
A3/A4型题
（9～12题共用题干）
患儿，6岁，体重20kg，在家玩耍时不慎打翻开水瓶，双下肢被开水烫伤后皮肤出现大水疱，皮薄，疼痛明显，水疱破裂后创面为红色。
9、该患儿的烧伤面积为：B
A、20％
B、40％
C、46％
D、50％
E、70％
10、此患儿的烧伤深度为：B
第九章损伤病人的护理
A、I度
B、浅Ⅱ度
C、深Ⅱ度
D、Ⅲ度
E、Ⅳ度
11、该患儿烧伤后第一个24小时应补的晶体和胶体液量为：E
A、1040 ml
B、1140 ml
C、1240 ml
D、1340 ml
E、1440 ml
12、对于该患儿的现场处理不正确的是：B
A、迅速脱离热源
B、创面涂抹龙胆紫
C、用自来水大量冲洗双下肢
D、大量补液
E、迅速送往医院
三、简答题
1、简述烧伤的现场急救？
答：主要目的是尽快消除致伤原因、脱离现场和施行生命救治。
（1）迅速脱离热源：
（2）抢救生命：
（3）保护创面和保温：
（4）保持呼吸道通畅：
（5）其他救治措施：
①纠正低血容量：
②镇静止痛、稳定伤员情绪：
③有效地处理严重复合伤：
2、包扎和暴露疗法各适用于哪些情况？
答：包扎疗法适用于四肢烧伤、气候寒冷而病房保温条件差和小面积烧伤的门诊病人。暴露疗法是将创面直接暴露在温暖而干燥的环境中，多用于头颈部、会阴部烧伤或有严重感染的创面和大面积烧伤病人。
3、影响创伤修复的因素有哪些？
答：l．年龄
2．感染
3．异物存留及失活组织过多
4．慢性疾病
5．血液循环障碍
6．营养状况
7．局部制动不够
8．类固醇激素
4、烧伤在临床上分为哪几期？
答：（1）急性体液渗出期（休克期）：
（2）感染期：
（3）修复期：
5、烧伤的现场急救措施主要包括哪些？
外科护理学
答：（1）迅速脱离热源：
（2）抢救生命：
（3）保护创面和保温：
（4）保持呼吸道通畅：
（5）镇静止痛、稳定伤员情绪：
（6）有效地处理严重复合伤：
四、论述题
某成年男性，体重60㎏，不慎被沸水烫伤，立即送进医院。护理体检：神志清楚，P104次/分、Bp12/8kPa（90/60mmHg），面部、颈部、胸腹部、双前臂、双手布满大水疱，感觉剧痛，双小腿水疱较小，有拔毛痛，双足呈蜡白色、可见树枝状静脉栓塞网。入院后开始静脉输液，并同时进行清创。
问：（1）估计烧伤总面积？
（2）说出主要的护理诊断？
（3）计算伤后第一个24小时的补液总量：
天津大学工程力学习题答案
3-10 求图示多跨梁支座A 、C 处的约束力。已知M =8kN ·m ，q =4kN/m ，l =2m 。 解：（1）取梁BC 为研究对象。其受力如图(b)所示。列平衡方程 （2）取整体为研究对象。其受力如图(c)所示。列平衡方程 3-11 组合梁 AC 及CD 用铰链C 连接而成，受力情况如图(a)所示。设F =50kN ， q =25kN/m ，力偶矩M =50kN ·m 。求各支座的约束力。 F B kN 1842494902 332, 0=??===? ?-?=∑ql F l l q l F M C C B kN 62431830 3, 0=??+-=+-==?-+=∑ql F F l q F F F C A C A y m kN 32245.10241885.1040 5.334, 022?=??+??-=+?-==??-?+-=∑ql l F M M l l q l F M M M C A C A A
解：（1）取梁CD 为研究对象。其受力如图(c)所示。列平衡方程 （2）取梁AC 为研究对象。其受力如图(b)所示，其中F ′C =F C =25kN 。列平衡方程 F C (b) (c) ′C kN 254 50 252420124, 0=+?=+= =-??-?=∑M q F M q F M D D C kN 254 50256460324, 0=-?=-= =-??+?-=∑M q F M q F M C C D ) kN(252 25225250222021212, 0↓-=?-?-='--= =?'-??-?+?-=∑C A C A B F q F F F q F F M kN 1502 25425650246043212, 0=?+?+='++==?'-??-?-?=∑C B C B A F q F F F q F F M
工程力学课后习题答案(20200124234341)
《工程力学》复习资料 1．画出（各部分）的受力图 （1）（2） （3） 2．力F作用在边长为L正立方体的对角线上。设Oxy平面与立方体的底面ABCD 相平行，两者之间的距离为h，试求力F对O点的矩的矢量表达式。
解：依题意可得： cos cos F F x sin cos F F y sin F F z 其中3 3sin 3 6cos 45 点坐标为： h l l ,,则 3 ) ()(33 33 33 3j i h l F k F j F i F F M 3．如图所示力系由 F 1，F 2，F 3，F 4和F 5组成，其作 用线分别沿六面体棱边。已知：的F 1=F 3=F 4=F 5=5kN, F 2=10 kN ，OA=OC/2=1.2m 。试求力 系的简化结果。 解：各力向O 点简化 0.0.0 .523143C O F A O F M C B F A O F M C O F C O F M Z Y X 即主矩的三个分量 kN F F Rx 55 kN F F Ry 102kN F F F F RZ 54 3 1 即主矢量为: k j i 5105合力的作用线方程 Z y X 24．多跨梁如图所示。已知：q=5kN ，L=2m 。试求A 、B 、D 处的约束力。
取CD 段0 ci M 0 212 ql l F D 解得 kN F D 5取整体来研究，0iy F 0 2D B Ay F l q F F 0ix F 0 Ax F 0 iA M 0 32l F l ql l F D B 联合以上各式，解得 kN F F Ay A 10kN F B 255．多跨梁如图所示。已知：q=5kN ，L=2m ，ψ=30°。试求A 、C 处的约束力。（5+5=10分） 取BC 段0iy F 0 cos 2C B F l q F 0ix F 0 sin C Bx F F 0 ic M 0 22l l q l F By
第版新视野大学英语4读写教程课本练习答案(全)
第3版新视野大学英语4读写教程课本练习答案（全）第三版的答案找了很久找不到，干脆自己做一个！客观题总结全了，有能力的请下载下来支持我1个下载券，在线阅读的也请在下面评价文档处点个五星，谢谢！ Unit 1 Text A: Language focus: Words in use 1.crumbled 2.discern 3.surpass 4.shrewd 5.conversion 6.distort 7.radiant 8.ingenious 9.stumped 10.proposition Text A: Language focus: Words building: Practice 1 delicacy bankruptcy accountancy secrecy vacancy urgency atmospheric magnet metallic gloom guilt
mastery Text A: Language focus: Words building: Practice 2 1.bankruptcies 2.atmospheric 3.delicacies 4.urgency 5.accountancy 6.gloom 7.magnet 8.metallic 9.mastery 10.vacancy 11.guilt 12.secrecy Text A > Language focus > Banked cloze (1) mentioned (2) determine (3) gained (4) responsible (5) heavily (6) artistic
高级英语第三版第一册课后英译汉答案
高级英语第三版第一册课后英译汉答案 Unit1Paraphrase: 1.We’re23feet above sea level. 2.The house has been here since1915,andno hurricane has ever caused any damag e to it. 3.We can make the necessary preparations and survive the hurricane without much damage. 4.Water got into the generator and put it out.It stopped producing electricity,so the lights also went out. 5.Everybody goes out through the back door and runs to the cars! 6.The electrical systems in the car(the battery for the starter)had been put out by w ater. 7.As John watched the water inch its way up the steps,he felt a strong sense of guilt because he blamed himself for endangering the whole family by deciding not to flee i nland. 8.Oh God,please help us to get through this storm safely 9.Grandmother Koshak sang a few words alone and then her voice gradually grew di mmer and finally stopped. 10.Janis displayed the fear caused by the hurricanerather late. 1.每架飞机起飞之前必须经过严格的检查。（check out） Each and every airplane must be checked out thoroughly before taking off. 2.居民坚决反对在附近建立垃圾焚烧厂，因为他们担心工厂排放的气体会污染周围的空气。（waste incineration plant,concerned about） The residents were firmly against the construction of a waste incineration plant in th eir neighborhood because they were deeply concerned about the air pollution emitt ed by the plant. 3.在这个地区，生态工程的投资额高达数十亿。（mount to） In this area,investment in ecological projects mounted up to billions of yuan. 4.干枯的河道里布满了大大小小的石块。（strewn with） The dry riverbed was strewn with rocks of all sizes. 5.虽然战争给这个国家造成巨大的损失，但当地的文化传统并没有消亡。（perish）Although war caused great losses to this country,its local cultural traditi ons did not perish. 6.为了建筑现代化的高楼大厦，许多古老的、具有民族特色的建筑都被拆毁了。（demolish） To make space for modern high rises,a lot of ancient buildings with ethnic cultural fe atures had to be demolished. 7.在地震中多数质量差的房子的主体结构都散架了。（disintegrate） The main structures of most of the poor-quality houses disintegrated in the earthqua ke. 8.他为实现自己的目标付出了最大的努力，但最后美好的梦想还是化为了泡影。
《工程力学》课后习题与答案全集
工程力学习题答案 第一章 静力学基础知识 思考题：1. ×;2. √;3. √;4. √;5. ×;6. ×;7. √;8. √ 习题一 1．根据三力汇交定理，画出下面各图中A 点的约束反力方向。 解：（a ）杆AB 在A 、B 、C 三处受力作用。 由于力p u v 和B R u u v 的作用线交于点O 。 如图（a ）所示，根据三力平衡汇交定理， 可以判断支座A 点的约束反力必沿 通过A 、O 两点的连线。 （b ）同上。由于力p u v 和B R u u v 的作用线 交于O 点，根据三力平衡汇交定理， 可判断A 点的约束反力方向如 下图（b ）所示。 2．不计杆重，画出下列各图中AB 杆的受力图。 解：（a ）取杆AB 为研究对象，杆除受力p u v 外，在B 处受绳索作用的拉力B T u u v ，在A 和E 两处还受光滑接触面约束。约束力A N u u u v 和E N u u u v 的方向分别沿其接触表面的公法线， 并指向杆。其中力E N u u u v 与杆垂直， 力A N u u u v 通过半圆槽的圆心O 。 AB 杆受力图见下图（a ）。 (b)由于不计杆重，曲杆BC 只在两端受铰销B 和C 对它作用的约束力B N u u u v 和C N u u u v ， 故曲杆BC 是二力构件或二力体，此两力的作用线必须通过B 、C 两点的连线，且 B N = C N 。研究杆两点受到约束反力A N u u u v 和B N u u u v ，以及力偶m 的作用而 平衡。根据力偶的性质，A N u u u v 和B N u u u v 必组成一力偶。 (d)由于不计杆重，杆AB 在A 、C 两处受绳索作用的拉力A T u u v 和C T u u v ，在B 点受到支 座反力B N u u u v 。A T u u v 和C T u u v 相交于O 点， 根据三力平衡汇交定理， 可以判断B N u u u v 必沿通过
工程力学 课后习题答案
4-1 试求题4-1图所示各梁支座的约束力。设力的单位为kN ，力偶矩的单位为kN ?m ，长度 单位为m ，分布载荷集度为kN/m 。(提示：计算非均布载荷的投影和与力矩和时需应用积分)。 解： (b)：(1) 整体受力分析，画出受力图(平面任意力系)； (2) 选坐标系Axy ，列出平衡方程； 0: 0.40 0.4 kN x Ax Ax F F F =-+==∑ ()0: 20.80.5 1.60.40.720 0.26 kN A B B M F F F =-?+?+?+?==∑ 0: 20.50 1.24 kN y Ay B Ay F F F F =-++==∑ 约束力的方向如图所示。 A B C D 0.8 0.8 0.4 0.5 0.4 0.7 2 (b) A B C 1 2 q =2 (c) M=3 30o A B C D 0.8 0.8 0.8 20 0.8 M =8 q =20 (e) A B C D 0.8 0.8 0.4 0.5 0.4 0.7 2 F B F Ax F A y y x
(c)：(1) 研究AB 杆，受力分析，画出受力图(平面任意力系)； (2) 选坐标系Axy ，列出平衡方程； 2 ()0: 3320 0.33 kN B Ay Ay M F F dx x F =-?-+??==∑? 2 0: 2cos300 4.24 kN o y Ay B B F F dx F F =-?+==∑? 0: sin300 2.12 kN o x Ax B Ax F F F F =-==∑ 约束力的方向如图所示。 (e)：(1) 研究C ABD 杆，受力分析，画出受力图(平面任意力系)； (2) 选坐标系Axy ，列出平衡方程； 0: 0x Ax F F ==∑ 0.8 ()0: 208 1.620 2.40 21 kN A B B M F dx x F F =??++?-?==∑? 0.8 0: 20200 15 kN y Ay B Ay F dx F F F =-?++-==∑? 约束力的方向如图所示。 4-16 由AC 和CD 构成的复合梁通过铰链C 连接，它的支承和受力如题4-16图所示。已知 均布载荷集度q =10 kN/m ，力偶M =40 kN ?m ，a =2 m ，不计梁重，试求支座A 、B 、D 的约束力和铰链C 所受的力。 A B C 1 2 q =2 M=3 30o F B F Ax F A y y x dx 2?dx x A B C D 0.8 0.8 0.8 20 0.8 M =8 q =20 F B F Ax F A y y x 20?dx x dx A B C D a M q a a a
新视野大学英语读写教程4(第三版)课本练习参考答案
新视野大学英语读写教程4（第三版）课本 练习参考答案 Unit 1 Text A Text A：Language focus：Words in use crumbled discern surpass shrewd conversion distort radiant ingenious stumped proposition Text A：Language focus：Word building：Practice 1 delicacy bankruptcy accountancy secrecy vacancy
urgency atmospheric magnet metallic gloom guilt mastery Text A：Language focus：Word building：Practice 2 bankruptcies atmospheric delicacies urgency accountancy gloom magnet metallic mastery vacancy guilt secrecy
Text A：Language focus：Banked cloze mentioned determine gained responsible heavily artistic opposite analytical distorted stumped Text A: Language focus: Expressions in use were dripping with in exchange for flared up make an analogy between set a date for make……out of made a pact had appealed to
(完整版)高级英语第三版第二册张汉熙1-4单元课后题及答案
Lesson One 1. And it is an activity only of humans. And conversation is an activity found only among human beings. 2. Conversation is not for making a point. Conversation is not for persuading others to accept our ideas or points of views. 3. In fact, the best conversationalists are those who are prepared to lose. In fact , people who are good at conversation will not argue to win or force others to accept his ideas. 4. Bar friends are not deeply involved in each other’s lives. People who meet each other for a drink in the bar of a pub are not close friends for they are not deeply absorbed in each other’s private lives. 5. ....it could still go ignorantly on ... The conversation could go on without anybody knowing who was right or wrong. 6. There are cattle in the fields ,but we sit down to beef. These animals are called cattle when they are alive and feed in the fields , but when we sit down at the table to eat, we call their meet beef. 7. The new ruling class had built a cultural barrier against him by building their French against his own language. The new ruling class by using French instead of English made it hard for the English to accept or absorb the culture of the rulers. 8. English had come royally into its own. English received proper recognition and was used by the King once more. 9. The phrase has always been used a little pejoratively and even facetiously by the lower classes. The phrase , the King’s English ,has always been used disrespectfully and jokingly by the lower classes.(The working people often mock the proper and formal language of the educated people.) 10. The rebellion against a cultural dominance is still there. As the early Saxon peasants , the working people still have a spirit of opposition to the cultural authority of the ruling class. 11. There is always a great danger that “ words will harden into things for us. “ There is always a great danger , as Carlyle put it , that we might forget that words are only symbols and take them for things they are supposed to represent. Translation
工程力学课后习题答案
第一章 静力学基本概念与物体的受力分析 下列习题中，未画出重力的各物体的自重不计，所有接触面均为光滑接触。 1.1 试画出下列各物体（不包括销钉与支座）的受力图。 解：如图 (g) (j) P (a) (e) (f) W W F F A B F D F B F A F A T F B A 1.2画出下列各物体系统中各物体（不包括销钉与支座）以及物体系统整体受力图。 解：如图 F B B (b)
(c) C (d) C F D (e) A F D (f) F D (g) (h) EO B O E F O (i)
(j) B Y F B X B F X E (k) 1.3铰链支架由两根杆AB、CD和滑轮、绳索等组成，如题1.3图所示。在定滑轮上吊有重为W的物体H。试分别画出定滑轮、杆CD、杆AB和整个支架的受力图。 解：如图 ' D 1.4题1.4图示齿轮传动系统，O1为主动轮，旋转 方向如图所示。试分别画出两齿轮的受力图。 解： 1 o x F 2o x F 2o y F o y F F F' 1.5结构如题1.5图所示，试画出各个部分的受力图。
解： 第二章 汇交力系 2.1 在刚体的A 点作用有四个平面汇交力。其中F 1＝2kN ，F 2=3kN ，F 3=lkN ， F 4=2.5kN ，方向如题2.1图所示。用解析法求该力系的合成结果。 解 0 00 1 42 3c o s 30c o s 45c o s 60 c o s 45 1.29 Rx F X F F F F KN = =+- -=∑ 00001423sin30cos45sin60cos45 2.54Ry F Y F F F F KN ==-+-=∑ 2.85R F KN == 0(,)tan 63.07Ry R Rx F F X arc F ∠== 2.2 题2.2图所示固定环受三条绳的作用，已知F 1＝1kN ，F 2=2kN ，F 3=l.5kN 。求该力系的合成结果。 解：2.2图示可简化为如右图所示 23cos60 2.75Rx F X F F KN ==+=∑ 013sin600.3Ry F Y F F KN ==-=-∑ 2.77R F KN == 0(,)tan 6.2Ry R Rx F F X arc F ∠==- 2.3 力系如题2.3图所示。已知：F 1＝100N ，F 2=50N ，F 3=50N ，求力系的合力。 解：2.3图示可简化为如右图所示 080 arctan 5360 BAC θ∠=== 32cos 80Rx F X F F KN θ==-=∑ 12sin 140Ry F Y F F KN θ==+=∑ 161.25R F KN == ( ,)tan 60.25Ry R Rx F F X arc F ∠= = 2.4 球重为W ＝100N ，悬挂于绳上，并与光滑墙相接触，如题2.4 图所示。已知30α=，
新视野大学英语第三版读写教程第二册课后习题答案
新视野大学英语第三版读写教程第 二册课后习题答案 Unit 1 Section A in use mayor decided to(condense)his speech in order to leave enough time for his audience to raise questions. 2. It was reported that there was a vehicle missing every 20 seconds in the the trends continue,experts predict annual vehicle thefts could(exceed)two million. 3. Researchers put patients through a set of psychological tests to determine the negative consequences of sleep(deficit). 4. Too much(exposure)to dirty air can cause people to suffer from allergies and diseases that will eventually affect people’s health. 5. Moving forward even in the face of great difficulties has become my most important(asset)in my life since it has helped me accomplish something
高级英语第三版课后答案整理
Lesson 1 Question: 1. Why did John Koshak decide to stay although he knew the hurricane would be bad? For the following reasons: For one thing, the house was 23 feet above sea level; for another,he was unwilling to abandon his home. 2. How did the man prepare for the hurricane? Why was a generator necessary? They filled bathtubs and pails. Besides, they checked out batteries for portable radio and flashlights, and fuel for the lantern. A generator was necessary because John's father wired several light bulbs to it and prepared a connection to the refrigerator. 3. What made it impossible for the Koshak to escape? It was impossible for the Koshers to escape both by car and on foot. The car's electrical system had been killed by water. Meanwhile, the water became too deep for them to escape on foot. 4. Why did John Koshak feel a crushing guilt? Because he blamed himself for underestimating the power of the hurricane and then endangering the whole family by his wrong decision not to flee safer inland. 5. Why did Grandma Koshak ask children to be sing? A: Because she knew how frightened the children were and wanted to boost their spirit. 6. What was a hurricane party? What happened to the party gores? A hurricane party was the one that was held by several vacationers to enjoy the spectacle of the hurricane with a clear and broad view in the fancy Richelieu Apartments from where they believed they would be safe. Richelieu Apartments were smashed apart by the hurricane and 26 people perished. 7. What did Grandma Koshak mean when she said," We lost practically all our possessions, but the family came through it. When I think of that, I realize we lost nothing important?" She meant that human lives are more important than material possessions. 8. How did the community of Gulfport act after Hurricane Camille was over? They managed to make their lives return to normal and began rebuilding their community without any delay. Paraphrase: 1. We're elevated 23 feet. Our house is 23 feet above sea level. 2. The place has been here since 1915, and no hurricane has ever bothered it. The house was built in 1915 and since then no hurricane has done any damage to it. 3. We can batten down and ride it out. We can prepare ourselves for the hurricane and manage to survive it without much damage. 4. The generator was doused, and the lights went out. Water got into the generator, and it didn't work. As a result, the lights were put out. 5. Everybody out the back door to the cars! Everybody go out though the back door and get into the cars. 6. The electrical system had been killed by water. The electrical system in the cars had been destroyed by water. 7. John watched the water lap at the steps, and felt a crushing guilt. When John watched the water inch its way up the steps, he felt a strong sense of guilt because he b
新视野大学英语读写教程4课后习题答案(完整版)
第二版新视野大学英语读写教程4第四册课后答案 Unit One III. 1. idle 2. justify 3. discount 4. distinct 5. minute 6.accused 7. object 8. contaminate 9. sustain 10. worship IV. 1. accusing... of 2. end up 3. came upon 4. at her worst 5. pay for 6. run a risk of 7. participate in 8. other than 9. object to/objected 10. at best V 1. K 2. G 3. C 4. E 5. N 6.O 7.I 8. L 9. A 10. D Collocation VI. 1. delay 2. pain 3. hardship 4. suffering 5. fever 6. defeat 7. poverty 8. treatment 9. noise 10. agony Word building VII. 1. justify 2. glorify 3. exemplifies 4. classified 5. purified 6. intensify 7. identify 8. terrified VIII. 1. bravery 2. jewelry 3. delivery 4. machinery 5. robbery 6. nursery 7. scenery 8. discovery Sentence Structure IX. 1. other than for funerals and weddings 2. other than to live an independent life 3. other than that they appealed to his eye . . ` 4. but other than that, he'll eat just about everything . 5. other than that it's somewhere in the town center X. 1. shouldn't have been to the cinema last night 2. would have; told him the answer 3. they needn't have gone at all 4. must have had too much work to do
高级英语第三版第一册课后答案
高英课内考点：第一课：Paraphrase 1、we’re elevated 23 feet. Our house is 23 feet above sea level. 2、The place has been here since 1915,and no hurricane has ever bothered it. The house was built in 1915,and since then no hurricane has done any damage to it. 3、We can batten down and ride it out. We can make the necessary preparation and survive the hurricane without much damage. 4、The generator was doused,and the lights went out. Water got into the generator,it stopped working.As a result all lights were put out. 5、Everybody out the back door to the cars! Everyone go out through the back door and get into the cars! 6、The electrical systems had been killed by water.
The electrical systems in the cars had been destroyed by water. 7、John watched the water lap at the steps,and felt a crushing guilt. As John watched the water inch its way up the steps,he felt a strong sense of guilt because he blamed himself for endangering the family by making the wrong decision not to flee inland. 8、Get us through this mess,will You? Oh,God,please help us to get through this dangerous situation. 9、She carried on alone for a few bars;then her voice trailed away. She sang a few words alone and then her voice gradually grew dimmer and stopped. 10、Janis had just one delayed reaction. Janis didn’t show any fear on the spot during the storm,but she revealed her feelings caused by the storm a few nights after the hurricane by getting up in the middle of the night and crying softly. 英译汉： 1、But,like thousands of others in the coastal communities,John was reluctant to abandon his home unless the family----his wife,Janis,and their seven children,aged 3 to 11---was clearly endangered.
工程力学-课后习题答案
工程力学-课后习题答案
4-1 试求题4-1图所示各梁支座的约束力。设力 的单位为kN ，力偶矩的单位为kN m ，长度 单位为m ，分布载荷集度为kN/m 。(提示： 计算非均布载荷的投影和与力矩和时需应用积分)。 A B C D 0.8 0.8 0.4 0 00.7 2 ( A B C 1 2 q ( M= 30o A B C D 0.8 0.8 0.8 2 0.8 M = q =(
解： (b)：(1) 整体受力分析，画出受力图(平面任意 力系)； (2) 选坐标系Axy ，列出平衡方程； 0: 0.40 0.4 kN x Ax Ax F F F =-+==∑ ()0: 20.80.5 1.60.40.720 0.26 kN A B B M F F F =-?+?+?+?==∑ 0: 20.50 1.24 kN y Ay B Ay F F F F =-++==∑ 约束力的方向如图所示。 (c)：(1) 研究AB 杆，受力分析，画出受力图(平 面任意力系)； A B C 1 2 q M= 30o F F A F A y x d 2?x A B C D 0.8 0.8 0.4 00 0.7 2 F F A F A y
(2) 选坐标系Axy ，列出平衡方程； 2 0()0: 3320 0.33 kN B Ay Ay M F F dx x F =-?-+??==∑? 2 0: 2cos300 4.24 kN o y Ay B B F F dx F F =-?+==∑? 0: sin 300 2.12 kN o x Ax B Ax F F F F =-==∑ 约束力的方向如图所示。 (e)：(1) 研究C ABD 杆，受力分析，画出受力图 (平面任意力系)； (2) 选坐标系Axy ，列出平衡方程； 0: 0x Ax F F ==∑ 0.8 ()0: 208 1.620 2.40 21 kN A B B M F dx x F F =??++?-?==∑? 0.8 0: 20200 15 kN y Ay B Ay F dx F F F =-?++-==∑? 约束力的方向如图所示。 A B C D 0.8 0.8 0.8 20.8 M = q =F F A F A y x 20 x d
第版新视野大学英语读写教程课本练习答案解析全
第3版新视野大学英语4读写教程课本练习 答案（全） 第三版的答案找了很久找不到，干脆自己做一个！客观题总结全了，有能力的请下载下来支持我1个下载券，在线阅读的也请在下面评价文档处点个五星，谢谢！ Unit 1 Text A: Language focus: Words in use 1.crumbled 2.discern 3.surpass 4.shrewd 5.conversion 6.distort 7.radiant 8.ingenious 9.stumped 10.proposition Text A: Language focus: Words building: Practice 1 delicacy bankruptcy accountancy secrecy vacancy urgency atmospheric magnet metallic gloom guilt
mastery Text A: Language focus: Words building: Practice 2 1.bankruptcies 2.atmospheric 3.delicacies 4.urgency 5.accountancy 6.gloom 7.magnet 8.metallic 9.mastery 10.vacancy 11.guilt 12.secrecy Text A > Language focus > Banked cloze (1) mentioned (2) determine (3) gained (4) responsible (5) heavily (6) artistic