chapter6-assignment
Unit 6-Assignment Studnet
Unit Six Women, Half the SkyText AA Woman Can Learn Anything a Man CanWatch the video “Obama’s Speech on American Women”. Please answer the questions and then fill in the blanks:✦Vocabulary:peaks and valleys 高潮和低谷upward 向上的daring 大胆的indomitable不屈不挠的ridicule 嘲笑, 奚落assumption 臆断crack 裂缝reflect on 思考statistics 统计数据victim 受害人domestic 家庭的bend 弯曲✦Questions1.In Obama’s opinion, what does the story of America look like?The story of America is one of hope and progress, of an upward journey.2.Wha t is the reality of American women’s life at present?It is a reality marked by unfairness, by hardship for too many wom en.3.What is the fundamental truth reflected by the facts and figures?The fundamental truth is that full gender equality has not yet been achieved.4. Can you mention some famous women in Chinese history?5. What is the reality of Chinese women’s life at present?The story of America’s women, like the story of America itself, has had its peaks and valleys.But as one of our great American educators once said, if you drew a line through all the valleys and all the peaks, that line would be drawn with an upward curve. That upward curve—what we call 1progress —didn’t happen by accident.It came about because of 2daring , indomitable women. Women like Abigail Adams, who brought on the ridicule of her husband John by advising him to “remember the ladies” in our founding documents. Women like the 3pioneers and settlers who, in the words of one, said, “I thought where he could go, I could go.”Women like Dorothy Height and Sylvia Mendez and Betty Friedan and Gloria Steinem and Sandra Day O’Connor and Madeline Albright, upending assumptions and changing laws and tearing down 4barriers . Women like Hillary Rodham Clinton, who, throughout her career, has put millions of cracks in America’s glass ceiling (玻璃天花板；玻璃顶棚。
语言学重点讲解
三星级重点章节07年冬天，学校组织了一个讲座，请老师给我们谈考试重点，同时学生有什么问题，可以当面问他。
他说前五章是最重要的，第七和第八次之，第六，第九和第十二章也有考的内容，但不会很多，剩下的十章和十一章可以不看！所以，我就用三颗星表示最重要；俩颗星表示第二重要，一颗星表示第三重要。
王老师说只要把胡壮麟那本书背会了，肯定能考好！因为考试覆盖的知识点都在书上！其实，背会那本书是不实际的，而把那本书过5到6遍是可能的，也是必须的。
而且重点章节要在理解的基础上反复看。
虽然我们文科的知识，背时关键，但是理解更重要，尤其语言学这门课，比较抽象，不理解就背，效果不好，不容易背会。
北语没有提供考纲之类的东西，只告诉语言学参考书是胡壮麟的《语言学教程(修订版)》。
（09年不知是否会换成该书的第三版）所以能知道该书哪些章节是重点，能让我们有的放矢。
我这里所说的三星级重点，即最重要的章节是该书的前五章。
不知道外校的考生，他们学校开过这门课没有！我们北语大三下学期讲前五章，大四上学期讲的6，7，8，9，12这几章。
下面，我们先谈谈前五章该如何复习。
Chapter1: Invitations to linguistics；Chapter2: Speech Sounds；Chapter3: Lexicon；Chapter4: Syntax (新版中，这章改成From Word to Text，是变化最大的一章，变化的结果是比以前的简单了）；Chapter5: Meaning。
这五章可以说是语言学的基础和考试的重点。
我们一定要反复看，理解其中的定义等知识点。
一定要在理解的基础上记忆。
Chapter1: Invitations to linguistics这章是该书的开篇，目的是让大家对语言学这门课有个初步的了解，为后面几章作个铺垫。
也许你会说这种章节肯定不重要。
错！奇怪的是这一章居然很重要。
因为考点还不少！Design features of language: Arbitrariness, duality, creativity, displacement. 这四个特征要求理解，牢记，能背出定义。
Assignment
Assignment 06I. Translate the following sentences into Chinese, annotating the terms ifnecessary.1.Yet, if people don’t eat onions because they taste like onions, what in the name ofLuther Burbank do they eat them for?可是，如果人们吃洋葱不是因为它们有洋葱的味道，那么看在卢瑟伯班克的份上，告诉我它们究竟为什么吃洋葱？（卢瑟-伯班克，美国植物育种家，为了纪念卢瑟-伯班克，在美国加州就把他生日的那天定为著名的植树节，在植树节当天人们会栽种树木）2. At home and abroad there is a strong view that this treaty is a new Munich.国内外提出强烈异议认为该条约是一项新的慕尼黑阴谋。
（慕尼黑阴谋是指二战之前，英、法两国为避免战争爆发，签订《慕尼黑协定》，牺牲捷克的苏台德区的一项绥靖政策。
）3.The crafty enemy was ready to launch a new attack while holding out the olive branch.狡猾的敌人正在准备发动新的进攻在伸出橄榄枝的同时。
（伸出橄榄枝，表示愿意讲和。
）4.The staff member folded like an accordion.那个职员就像一个合起来的手风琴一样不出声。
5.It is always inspiring to see a brave man fighting for a lost cause, and I never ceaseto admire the Jacobitish zeal with which year after year Mr. Johy Ervine carries on a war fare against the ever increasing power of tobacco.看一个勇敢的人为一件注定失败的事情努力奋斗总是一件鼓舞人心的事情，并且我心里一直钦佩约翰·欧文先生年复一年地以斯图亚特王朝拥护者的激情来对抗日益增强的烟草势力。
编译原理(第2版)课后习题答案详解
第1 章引论第1 题解释下列术语：（1）编译程序（2）源程序（3）目标程序（4）编译程序的前端（5）后端（6）遍答案：（1）编译程序：如果源语言为高级语言，目标语言为某台计算机上的汇编语言或机器语言，则此翻译程序称为编译程序。
（2）源程序：源语言编写的程序称为源程序。
（3）目标程序：目标语言书写的程序称为目标程序。
（4）编译程序的前端：它由这样一些阶段组成：这些阶段的工作主要依赖于源语言而与目标机无关。
通常前端包括词法分析、语法分析、语义分析和中间代码生成这些阶段，某些优化工作也可在前端做，也包括与前端每个阶段相关的出错处理工作和符号表管理等工作。
（5）后端：指那些依赖于目标机而一般不依赖源语言，只与中间代码有关的那些阶段，即目标代码生成，以及相关出错处理和符号表操作。
（6）遍：是对源程序或其等价的中间语言程序从头到尾扫视并完成规定任务的过程。
第2 题一个典型的编译程序通常由哪些部分组成？各部分的主要功能是什么？并画出编译程序的总体结构图。
答案：一个典型的编译程序通常包含8 个组成部分，它们是词法分析程序、语法分析程序、语义分析程序、中间代码生成程序、中间代码优化程序、目标代码生成程序、表格管理程序和错误处理程序。
其各部分的主要功能简述如下。
词法分析程序：输人源程序，拼单词、检查单词和分析单词，输出单词的机内表达形式。
语法分析程序：检查源程序中存在的形式语法错误，输出错误处理信息。
语义分析程序：进行语义检查和分析语义信息，并把分析的结果保存到各类语义信息表中。
中间代码生成程序：按照语义规则，将语法分析程序分析出的语法单位转换成一定形式的中间语言代码，如三元式或四元式。
中间代码优化程序：为了产生高质量的目标代码，对中间代码进行等价变换处理。
目标代码生成程序：将优化后的中间代码程序转换成目标代码程序。
表格管理程序：负责建立、填写和查找等一系列表格工作。
表格的作用是记录源程序的各类信息和编译各阶段的进展情况，编译的每个阶段所需信息多数都从表格中读取，产生的中间结果都记录在相应的表格中。
Assignment-Chapter 6
Assignment-Chapter 6True/False Questions1. The margin of safety in dollars equals the excess of budgeted (or actual) sales over the break-even volume of sales.2. The formula for the break-even point is the same as the formula to attain a given target profit for the special case where the target profit is zero.3. A company with high operating leverage will experience a lower reduction in net operating income in a period of declining sales than will a company with low operating leverage.4. A company with sales of $70,000 and variable expenses of $40,000 should spend $10,000 on increased advertising if the increased advertising will increase sales by $20,000.5. On a CVP graph for a profitable company, the total revenue line will be steeper than the total cost line.Multiple Choice Questions1. At the break-even point:A) sales would be equal to contribution margin.B) contribution margin would be equal to fixed expenses.C) contribution margin would be equal to net operating income.D) sales would be equal to fixed expenses.2. Hartl Corporation is a single product firm with the following selling price and cost structure for next year:Selling price per unit ................................. $1.80Contribution margin ratio.......................... 40%Total fixed expenses for the year .............. $218,700How many units will Hartl have to sell next year in order to break-even?A) 121,500B) 202,500C) 303,750D) 546,7503. Holt Company's variable expenses are 70% of sales. At a $300,000 sales level, the degree of operating leverage is 10. If sales increase by $60,000, the degree of operating leverage will be:A) 12B) 10C) 6D) 44. Hevesy Inc. produces and sells a single product. The selling price of the product is$200.00 per unit and its variable cost is $80.00 per unit. The fixed expense is $300,000 per month. The break-even in monthly unit sales is closest to:A) 2,500B) 1,500C) 3,750D) 2,5835. Which of the following strategies could be used to reduce the break-even point?Fixed expenses Contribution marginA) Increase IncreaseB) Decrease DecreaseC) Decrease IncreaseD) Increase DecreaseEssay Questions1. Spencer Company's most recent monthly contribution format income statement isgiven below:Sales .................................. $60,000Variable expenses.............. 45,000Contribution margin .......... 15,000Fixed expenses .................. 18,000Net operating loss .............. ($3,000)The company sells its only product for $10 per unit. There were no beginning or ending inventories.Required:a.What are total sales in dollars at the break-even point?b.What are total variable expenses at the break-even point?c.What is the company's contribution margin ratio?d.If unit sales were increased by 10% and fixed expenses were reduced by$2,000, what would be the company's expected net operating income?(Prepare a new income statement.)2. Belli-Pitt, Inc, produces a single product. The results of the company's operationsfor a typical month are summarized in contribution format as follows: Sales .................................. $540,000Variable expenses.............. 360,000Contribution margin .......... 180,000Fixed expenses .................. 120,000Net operating income ........ $ 60,000The company produced and sold 120,000 kilograms of product during the month. There were no beginning or ending inventories.Required:a.Given the present situation, compute1.The break-even sales in kilograms.2.The break-even sales in dollars.3.The sales in kilograms that would be required to produce net operatingincome of $90,000.4.The margin of safety in dollars.b.An important part of processing is performed by a machine that iscurrently being leased for $20,000 per month. Belli-Pitt has been offered an arrangement whereby it would pay $0.10 royalty per kilogramprocessed by the machine rather than the monthly lease.1.Should the company choose the lease or the royalty plan?2.Under the royalty plan compute break-even point in kilograms.3.Under the royalty plan compute break-even point in dollars.4.Under the royalty plan determine the sales in kilograms that would berequired to produce net operating income of $90,000.。
Chapter Six, Lecture Nine (Key to the Assignments)
KeyAssignments1. Questions:(1) What is the process of making a wood block picture?1) the sketch is drawn;2) the outline is inked before it is placed on the smoothed cherry or pear wood;3) engrave the wood block;4) different colors are applied to make a colored copy (process printing and monochromatic printing);5) mounting(2) What is “Paper-cut”?1) Paper-cut takes the scissors or engraving knife as the tool and colored paper as the material to cut out various motifs or patterns.2) Paper-cuts are either worn by women on the hair or pasted on windows, gates, or lintels of doors to bring good luck and avoid disasters.3) It is not only one of the most popular handicraft arts among the people, but also one of the most widespread decorative arts in China.4) In many part of China, paper-cutting skill has become the symbol of a clever mind and nimble fingers for Chinese ladies.5) The secret of paper-cut is the patterns are cut out but not broken.(3) Use examples to illustrate the enormous influence of China’s textile on world culture. Ancient Greece and Rome referred to China as “Seres” meaning “silk country”, and its pronunciation is similar to Chinese si (silk). English word “silk”was derived from the word “Seres”. From an etymological (语源的) perspective, silk as a representative of China’s textile has exerted an enormous influence on world culture. (P119)(4) Why Tang Dynasty was said to be the first peak period of porcelain development in the history?The proof can be found in three aspects:1) The number of famous kilns.2) Advanced technology.3) Widespread application. (P122)(5) What special meanings does jade bear in China’s traditional culture ?1) In the Origin of Chinese Characters, jade is acclaimed as having five virtues; for this reason, jade has special implication in China’s traditional culture.2) Jade articles used to be used as sacrificial and funerary articles, and they were assumed to have mysterious anti-evil effect. As a privilege to the nobility, jade is symbolic of power, wealth and status. A jade pendent, especially ring or penannular shaped, could mean reunion or farewell. (P122)(6) Explain “Yuan Xiao”.The name derives itself from the fact that the first lunar month is called yuan month and in the ancient times people called night xiao. The 15th day is the first night to see a full moon. So the day is also called Yuanxiao Festival, when thousands of colorful lanterns hung out for people to appreciate. At this time, people will try to solve the puzzles on the lanterns and eat yuanxiao and get all their families united in the joyful atmosphere. (P128)(7) Why is “Tug-of-war” called “Bahe” in Chinese?1)Generally, there are two explanations. One is that the river is symbolic of the boundary line between the State of Ch u and the State of Han in China’s Western Han Dynasty.2)Another explanation is that it came from an ancient sacrificial service, the purpose of which was to pray for rainfalls in order to ensure harvest. Bahe meant “pulling the river of heaven to make wa ter fall onto earth”, a belief that man could conquer the heaven. (P137)2. Translation:Section 1:民间工艺folk handicraft木版年画block-printed Chinese New Year Pictures装裱mounting彩印process printing勾线技法sketching techniques求福避祸bring good luck and avoid disasters 剪纸paper-cut门签gate labels心灵手巧a clever mind and nimble fingers 高手master-hands国际风筝都International Capital Of Kites潍坊风筝节Weifang Kite Festival龙头蜈蚣风筝dragon-headed centipede “尊龙”传统the tradition of dragon worship 刺绣作品embroidery article双面绣Double-faced embroidery纺车spinning wheel织机weaving machine麻织品时期flax fabric period民间纺织folk textile印染printing and dyeing蜡染wax-dyeing扎染tie-dyeing陶瓷ceramics/ pottery and porcelain兵马俑terra cotta warriors and horses青瓷blue porcelain白瓷white porcelain唐三彩tricolored glazed pottery of the Tang Dynasty五大名窑five kilns紫砂壶the boccaro teapot金银玉器gold, silver and jade wares金缕玉衣jade clothes sewn with gold thread 避邪anti-evil 玉佩jade pendent竹木藤器bamboo, wood and rattan work木雕wood carving柳编wickerwork草编straw-knitted work泥塑clay figure modelling面塑dough figure modeling生肖zodiac animals八仙the eight immortals西游记Pilgrimage to the WestSection 2&3:烟花爆竹firecrackers and fireworks闹花灯lantern show元宵节Lantern Festival/ Yuanxiao Festival 猜灯谜solving the puzzles on the lanterns踩高跷stilts-walking舞龙dragon lantern dance锣鼓drums and gongs舞狮lion dance跑旱船boating dance/ land-boat dance花鼓colored drum dance腰鼓waist drum dance精通十八般武艺skill in wielding the 18 kinds of weapons文臣武将men of letters and men of military capacity太极拳shadow boxing中国象棋Chinese chess龙舟竞渡the dragon-boat race拔河tug-of-war。
Assignment6
x>2 f (x) > 0 increase
There is a local minimum at (−1, 3), a local maximum at (0, 8), and a global minimum at (2, −24). The graph of f is shown next.
<x<2
′
x>2 f (x) > 0 increase
f (x) > 0 increase
f (x) < 0 decrease
There is a vertical tangent at (0, 0), which is not an extremum. There’s ( ) a horizontal tangent at 2 , 1.058 (ordinate approximate), which is a local 3 maximum. There is a cusp at (2, 0), which is also a local minimum. Note that f (x) ≈ x for |x| large; this aids in constructing the global sketch of the graph.
(
2x3 + 2x4 − 128 − 128x = 0 ( ) (x + 1) (x − 4) x2 + 4x + 16 = 0 The only relevant solution is x = 4. Since f ′ (x) < 0 for x in the interval (−1, 4) and f ′ (x) > 0 for x in the interval (4, +∞), we have indeed found the global minimum of f . The correspoinding value of y is 2, and the length √ of the shortest ladder is L = 5 5 ft. 3. A sphere with fixed radius a is inscribed in a pyramid with a square
国开】《数据库基础与应用》【形考】形考任务1-4答案
国开】《数据库基础与应用》【形考】形考任务1-4答案The formative assessment of this course consists of two parts: XXX of the learning process。
There are a total of four formative assessment assignments。
each accounting for 15% of the total grade。
as detailed in the paper-based XXX.XXX of the learning process accounts for 40% of the formative assessment grade and is designed and assigned by each branch (it is XXX)。
Each chapter of the main textbook of this course from Chapter 7 to Chapter 11 is XXX。
and each branch can choose as needed.XXX XXX:Order Chapter Form Start Time End Time Weight1 Chapters 1-3 Formative Assessment Assignment Week 3 End of Week 10 15%2 Chapters 4-5 Formative Assessment Assignment Week 6 End of Week 15 15%3 Chapters 6-8 Formative Assessment Assignment Week 9 End of Week 15 15%4 Chapters 9-11 XXX 10 End of Week 15 15%5 Daily Activity Learning Records Week 1 End of Week 16 40%Each formative assessment task is scored on a percentage basis。
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第六章 循环码的译码 习题
1．设计一个由g (x )=x 4+x 3+1生成的[15，11]循环汉明码编译码器。
2．构造由第1题的[15，11]码缩短三位的[11, 8]码译码器。
3．证明g (x )=1+x 2+x 4+x 6+x 7+x 10生成一个[21，11]循环码，作出此码的伴随式计算电路，令
R (x )=1+x 5+x 17是接收多项式，计算R (x )的伴随式，列出R (x )的每一接收数据移入伴随式计算电路后，伴随式寄存器中的内容。
4．构造GF(2)上以α、α3为根的循环码，这里α∈GF(24)中的本原元。
求出该码的生成多项式
g (x )以及码长n 和k .。
设计出该码的编码电路，求计算伴随式的电路。
5．构造[15，5，7]码的译码器，它的生成多项式g (x )=1+x +x 2+x 4+x 5+x 8+x 10，该码能纠正3个错
误。
设用简单的捕错译码器译码。
（a ）证明所有2个错误能被捕获；
（b ）能捕获所有3个错误的图样吗？若不能，则有多少种3个错误图样不能被捕获； （c ）作出该码的简单捕错译码器。
6．作出第5题中[15，5，7]码的修正捕错译码器，叙述其译码过程。
7．已知[17，9，5] QR 码的生成多项式g (x )=x 8+x 7+x 6+x 4+x 2+x +1，求出该码利用修正捕错译码的
{Q j (x )}，并作出捕错译码器，说明译码过程。
8．考虑[31，5]极长码，它的一致校验多项式是h (x )=1+x 2+x 5，求正交于x 30码元位的全部正交多
项式。
画出该码的I 型和II 型大数逻辑译码器。
9．作出表6-4中的[21，11，6]码的I 型大数逻辑译码器。
10．构造p =3，d =3复数旋转码，画出编译码电路图。
11．第5题中的[15，5，7]码是一步大数逻辑可译码，画出该码的I 型或II 型大数逻辑译码器。
12．考虑[11，6]线性码，它的一致校验矩阵是
1
000111111010001101000
0100101010000100110010
000100011
1H ⎡⎤⎢⎥⎢⎥⎢⎥=⎢⎥⎢⎥⎢⎥⎣⎦
(a)证明该码的距离恰好为4。
(b)令E =（e 0，e 1，e 2，…，e 10）是错误矢量，求出以此错误矢量表示的伴随式码元。
（c ）对i =5，6，7，8，9，10，求出正交于每一消息数据e i 的全部可能的一致校验和。
（d ）该码是一步完备可正交码吗？
13．作出[15，7，5]码的CHS2译码器，已知接收R
%=（000007004400020），求发送码字。
14．作出利用CHS2算法译[17，9，5]码的软判决译码流程图。
1。