综合练习37

合集下载

网络安全综合练习试题及答案

网络安全综合练习试题及答案

网络安全综合练习试题及答案一、单项选择题1.Internet网的通信协议是()。

A.X.25B. CSMA/CDC.CSMAD. TCP/IP(正确答案)2.与Web站点和Web页面密切相关的一个概念称为“URL”它的中文意思是()。

A.用户申请语言B.超文本标记语言C.超级资源连接D.统一资源定位符(正确答案)3.在Internet中,用户通过FTP可以()。

A.发送和接收电子邮件B.上传和下载文件(正确答案)C.游览远程计算机上的资源D.进行远程登录4. www 是 Internet 上的多媒体信息检索查询工具,它采用的基本技术是()。

A.超文本和超链接技术(正确答案)B.多媒体信息查询技术C.网络数据查询技术D.多媒体信息处理和数据压缩技术5.用户的电子邮件信箱是()。

A.通过邮局申请的个人信箱B.邮件服务器内存中的一块区域C.邮件服务器硬盘上的一块区域(正确答案)D.用户计算机硬盘上的一块区域6.在Internet域名中,gov表示()。

A.军事机构B.政府机构(正确答案)C.教育机构D.商业机构7.下列可以用做IP地址的是()。

A. 202.110.0.256B.128.98.0.1(正确答案)C. 273.56.78.0D.33.112.300.2558.在IE中,要重新载入当前页,可单击工具栏上的()按钮。

A.后退B.前进C.停止D.刷新(正确答案)9.超级文本是用HTML描述的文本,HTML即是()。

A.统一资源定位符B.资源管理器C.超文本传输协议D.超文本标记语言(正确答案)10.如果想要连接到WWW站点,应当以()开头来书写统一资源定位符。

A. telnet://B.http://(正确答案)C.ftp://D. news://11.如果我们要浏览www网站时,需要在()输入URL。

A.进度栏B.状态栏C.标题栏D.地址栏(正确答案)12.如果有一个我们很喜欢的网站,若想下一次可以很快地进入该网站,可以()。

湖南大学普通逻辑学综合习题及其答案(法律、教育等专业适用)

湖南大学普通逻辑学综合习题及其答案(法律、教育等专业适用)

《普通逻辑学》综合练习题及其答案(法律、教育等专业适用)一、填空1.任何逻辑形式都是由和两个部分组成的。

逻辑形式的不同是由的不同决定的。

2.对概念进行限制和概括的逻辑根据是。

3.概念不能限制和划分。

4.主项与谓项周延的性质判断的逻辑形式是;主项与谓项均不周延的性质判断的逻辑形式是。

5.性质判断的主项S和谓项P在外延上可能有、、、、五种关系。

6.一个性质判断的谓项不周延,则这个判断的质是;一个性质判断主项周延,则这个判断的量是。

7.根据有关推理规则,判断不能换位,判断不能换质位。

8.将“有的律师不是共产党员”换质,其结论是,再将所得结论换位为。

其推理的逻辑形式可用公式表示为。

9.如果SEP取值为真,则SIP取值为,SOP取值为,SAP取值为。

10.根据性质判断对当关系,如果SEP假,则SAP 、SIP 。

11.某有效三段论的大前提为MOP,小前提应为,结论应为。

12.违反三段论“中项在前提中必须至少周延一次”的规则,会犯的逻辑错误。

13.一个充分条件假言判断,只有当前件而后件时,它才是假的。

在其它情况下,它都是真的。

14.一个必要条件假言判断,只有当前件而后件时,它才是假的。

在其他情况下,它都是真的。

15.“只有勤奋的人,才能在事业上有所成就”。

这一判断的负判断是,与负该判断等值的判断是。

16.当“p ←→q”为假时,”pvq为。

17.“并非如果你来,他就不来。

”与该负判断等值的判断是。

18 .“并非只有由外国人当经理,才能把企业搞好。

”与该负判断等值的判断是。

19.如果对具有矛盾关系的两个判断同时以否定,则违反的要求。

二、单项选择题1.“历史上先后产生的国家有奴隶制国家、封建制国家、资产阶级国家、无产阶级国家,无论何种类型的国家都是阶级专政的工具”。

这几个判断对“国家”这个概念是(④)来说明的。

①仅从内涵方面②仅从外廷方面③先从内涵,再从外延方面④先从外延,再从内涵方面2.“民不畏死,奈何以死惧之”中的“民”这个概念是(②)①集合概念②非集合概念③普通概念④负概念3.“物理学就是研究物理的科学”作为定义,犯了(③)的逻辑错误。

国际市场营销综合练习题及答案

国际市场营销综合练习题及答案

国际市场营销综合练习题及答案一、名词解释1.市场:指具有特定的需要或欲望,而且愿意并能够通过交换来满足这种需要和欲望的全部现实和潜在顾客。

2.市场营销:市场营销既是一种组织职能,也是为了组织自身及利益相关者的利益而创造、传播、传递客户价值,管理客户关系的一系列过程。

3.国际市场营销:是指识别和确定国外消费者和用户需要,并指提供的商品和劳务能满足这些需要的一切活动,是企业为了向国外市场推销商品及劳务而组织的整体营销活动。

4.国际市场营销观念:是指导国际营销企业从事经营活动的思想观念或经营哲学,也叫经营观念或经营理念。

5.文化差异:指不同的国家和地区的种族、民族、宗教团体等社会人群有着不同的语言文字、价值观念、行为方式等。

6.国际市场营销经济环境:简单地说,就是对国际市场营销活动有直接或间接影响而企业又无法控制的各种经济要素的总和。

7.文化适应:指国际营销者对不同国家之间的文化差异及其对国际营销的影响进行全面、深入、准确的分析,然后采取相应的营销策略和措施,将文化差异的影响降至最低。

8.本土化:指国际营销者在进入某国市场后,努力融入东道国的经济体系,成为具有当地特色的经济实体的发展战略。

9.案头调研:又称为二手资料或文献调研,是指查寻并研究项目有关资料的过程。

10.实地调研:指由调研人员亲自收集原始资料(第一手资料)的过程。

11.营销信息系统:是指由人、机器和程序构成的、系统地收集、整理、贮存、检索、分析和说明市场营销数据资料的一个持续的过程和方法。

12.消费者市场:是指由个人和家庭为了生活需要而购买或租赁商品和服务所形成的市场。

13.选购品:一般指价格较高、较耐用,消费者不常购买也不急于购买的商品。

14.参考群体:指个人确定自己的判断、信念和行为时用作参考的那类群体,即对一个人的看法、态度和和行为起着参考、影响作用的个人和团体。

15.生产者市场:又称为产业市场,是指那些购买商品或服务用于生产其他商品或服务,然后销售或租赁给他人以获取利润的单位和个人所组成的市场。

《互联网基础与应用》综合练习题及答案

《互联网基础与应用》综合练习题及答案

“互联网基础与应用”综合练习题参考答案一、填空题1.Internet是由世界范围内数量众多的_计算机网络_互连而成的全球性的、开放的网络。

2.Internet由以下几部分组成:通信线路、路由器、主机和_信息资源_。

3.Internet的基本工作模式采用_客户机/服务器__的模式。

4.Internet的国际管理者是_因特网协会(Internet Society,ISOC)_,Internet的中国管理者是_中国互联网络信息中心(China Internet Network Information Center,简称CNNIC)_。

5.网络协议由3个要素组成,分别是_语法_、_语义_和_时序_。

6.TCP/IP网络的层次结构模型分为四层,分别是_网络接口层_、_网络层_、_传输层_和_应用层_。

7.Internet通信的基础协议是_TCP/IP_协议,其对应于OSI参考模型的传输层协议是_传输控制协议(Transmission Control Protocol,TCP)_协议,对应于OSI参考模型的网络层协议是_网际协议(Internet Protocol,IP)_协议。

8.域名服务器是一个安装有_域名解析_处理软件的主机,它的功能是_将主机域名映射成主机的IP地址_。

9.当前,Internet面临着各种安全威胁,其中最主要的威胁包括:网络攻击、计算机病毒、垃圾邮件和灰色软件。

10.WWW的核心部分是由三个标准构成的,分别是:统一资源定位符(URL)、超文本传送协议(HTTP)和超文本标记语言(HTML)。

11.搜索引擎通常包括三个组成部分,分别是_ Web蜘蛛、数据库和搜索工具_。

12.电子邮件服务器通常有两种类型,分别是_“发送邮件服务器”(SMTP服务器)和“接收邮件服务器”(POP3服务器或IMAP服务器)_。

13.FTP客户程序主要有三种类型,分别是_ FTP命令行程序、WWW浏览器和FTP客户端程序_。

钢结构综合练习题及答案

钢结构综合练习题及答案

钢结构综合练习题一、单选题1.钢材(de)三项主要力学性能指标为(A ).A. 抗拉强度、屈服点、伸长率B. 抗拉强度、屈服点、冷弯性能C. 抗拉强度、冷弯性能、伸长串 D.冷弯性能、屈服点、伸长率2.钢材(de)伸长率与(D)标准拉伸试件标距间长度(de)伸长值有关.A. 达到屈服应力时 B.达到极限应力时C. 试件塑性变形后 D.试件断裂后3.钢材(de)伸长率用来反映材料(de)(C ).A. 承载能力 B.弹性变形能力C. 塑性变形能力D.抗冲击荷载能力4.钢材(de)塑性指标,主要用(D )表示.A.流幅 B.冲击韧性C. 可焊性 D.伸长率5.在构件发生断裂破坏前,具有明显先兆(de)情况是(B )(de)典型特征.A. 脆性破坏 B.塑性破坏C. 强度破坏 D.失稳破坏6. 对钢材(de)分组是根据钢材(de)(D )确定(de).A.钢种 B.钢号C. 横截面积(de)大小 D.厚度与直径7.部分焊透(de)对接焊缝(de)计算应按(B )计算.A. 对接焊缝 B.角焊缝C. 断续焊缝D. 斜焊缝8.一个承受剪力作用(de)普通螺栓在抗剪连接中(de)承载力是(D ).A. 栓杆(de)抗剪承载力B. 被连接构件(板)(de)承压承载力C. A、B中(de)较大值 D. A、B中(de)较小值9.承压型高强度螺栓可用于(D ).A. 直接承受动力荷载B,承受反复荷载作用(de)结构(de)连接C. 冷弯薄壁钢结构(de)连接D.承受静力荷载或间接承受动力荷载结构(de)连接10.为提高轴心受压构件(de)整体稳定,在构件截面面积不变(de)情况下,构件截面(de)形式应使其面积分布(B).A.尽可能集中于截面(de)形心处 B. 尽可能远离形心C. 任意分布,无影响 D.尽可能集中于截面(de)剪切中心11.轴心受压构件柱脚底板(de)面积主要取决于( C ).A. 底板(de)抗弯刚度 B.柱子(de)截面积C.基础材料(de)强度等级 D.底板(de)厚度12.当无集中荷载作用时,焊接工字形截面粱翼缘与腹板(de)焊缝主要承受(C ).A. 竖向剪力 B.竖向剪力及水平剪力联合作用C. 水平剪力 D .压力13.在焊接组合粱(de)设计中,腹板厚度应(C ).A. 越薄越好B. 越厚越好C. 厚薄相当 D .厚薄无所谓14.排列螺栓时,若螺栓孔直径为0d ,螺栓(de)最小端距应为( B ).A 0dB 20dC 30dD 80d15.计算格构式压弯构件(de)缀件时,剪力应取(C ).A. 构件实际剪力设计值B. 由公式V=23585yf Af 计算(de)剪力C. 构件实际剪力设计值或由公式V=23585yf Af计算(de)剪力两者中较大值D .由y =dM /dx 计算值16.塑性好(de)钢材,则(D ).A .韧性也可能好B .韧性一定好 C. 含碳量一定高 D . —定具有屈服平台17.型钢中(de)H 型钢和工字钢相比,(B ).A .两者所用(de)钢材不同B .前者(de)翼缘相对较宽C. 前者(de)强度相对较高 D .两备(de)翼缘都有较大(de)斜度18.在构件发生断裂破坏前,具有明显先兆(de)情况是(B)(de)典型特征、A .脆性破坏B .塑性破坏C .强度破坏D .失稳破坏19.在弹性阶段,侧面角焊缝应力沿长度方向(de)分布为(C).A.均分分布 B.一端大、一端小C. 两端大、中间小 D.两端小、中间大20.下列轴心受拉构件,可不验算正常使用极限状态(de)为(D).A.屋架下弦 B.托架受拉腹杆C.受拉支撑杆 D.预应力拉杆21.为了(C),确定轴心受压实腹式构件(de)截面形式时,应使两个主轴方向(de)长细比尽可能接近.A.便于与其他构件连接 B.构造简单、制造方便C.达到经济效果 D.便于运输、安装和减少节点类型22.轴心受压构件发生弹性失稳时,截面上(de)平均应力(C ).A.低于钢材抗拉强度fu B.达到钢材屈服强度fyC.低于钢材比例极限fp D.低于钢材屈服强度fy23.梁(de)支承加劲肋应设置在(B ).A.弯曲应力大(de)区段B.上翼缘或下翼缘有固定集中力作用处C.剪应力较大(de)区段D.有吊车轮压(de)部位24.钢材(de)设计强度是根据(D )确定(de).A. 比例极限 B.弹性极限C. 屈服点D. 抗拉强度25.单轴对称截面(de)压弯构件,一般宜使弯矩( A ).A. 绕非对称轴作用 B.绕对称轴作用C. 绕任意轴作用 D.视情况绕对称轴或非对称轴作用26.弯矩作用在实轴平面内(de)双肢格构式压弯柱应进行( D )和缀材(de)计算.A.强度,刚度、弯矩作用平面内稳定性、弯矩作用平面外(de)稳定性,单肢稳定性B. 弯矩作用平面内(de)稳定性.单肢稳定性C.弯矩作用平面内稳定性、弯矩作用平面外(de)稳定性D. 强度,刚度、弯矩作用平面内稳定性、单肢稳定性27.钢结构设计规范规定,当结构(de)表面长期受辐射热达( B )℃以上或在短时间内可能受到火焰作用时,宜采取有效(de)防护措施(如加隔热层或水套等)28.在碳素结构钢中,( A )不宜用于焊接结构.·F ·F·F ·F29.有四种不同厚度(de)Q345钢,其中( A )厚(de)钢板强度设计值最高.mm mm mm mm30.格构式轴心受压构件(de)等边单角钢斜缀条可按轴心受压构件设计,但强度设计值要乘以折减系数以考虑( B )A.剪力(de)影响B.单面连接偏心(de)影响C.构件(de)焊接缺陷形(de)影响D.节点构件不对中(de)影响31.下图为承受固定集中力设计值F(包括梁自重)(de)等截面组合梁, 截面1 - 1处需验算折算应为,其验算部位为( C )32.焊接之字形梁(de)腹板局部稳定常采用配置加劲肋(de)方法来解决,若 h0/tw>160y f /235时, ( D ) .A.可能发生剪切失稳,应配置横向加劲肋B.可能发生弯曲失稳,应配置纵向加劲肋和横向加劲肋C.可能发生弯曲失稳,应配置横向加劲肋D.可能剪切失稳和弯曲失稳,应配置横向加劲肋和纵向加劲肋33.梁(de)支承加劲肋应设置在( B )A.弯曲应力大(de)区段B.上翼缘或下翼缘有固定集中力作用处C.剪应力较大(de)区段D.有吊车轮压(de)部位34.按钢结构设计规范规定,实腹式轴心受压构件整体稳定性(de)公式N/ A ≤f(de)物理意义是 ( D ) .A.构件截面上(de)平均应力不超过钢材抗压强度设计值B.构件截面上最大应力不超过钢材强度设计值c.构件截面上(de)平均应力不超过欧拉临界应力设计值D.构件轴心压力设计值不超过结件稳定极限承载力设计值35.在下图中(de)连接中,角钢肢尖上(de)角焊缝(de)焊脚尺寸hf应满足( B ) .A. = 10≤hf≤ = x 10B. = 12≤hf≤ = 10-(1~2)C. = 10≤hf≤ = x 12A. = 12≤hf≤ = 10-(1~2)36.两端铰接(de)轴心受压构件,截面如下图所示,在不改变钢种、构件截面类别和翼缘、腹板截面面积(de)情况下( D )采用可提高其承载力.A.调整构件在弱轴方向(de)计算长度,或加大腹板高度减少厚度B.改变构件端连接构造,或增设侧向支承点来减小弱轴方向(de)计算长度,或减小翼像宽度加大厚度C.调整构件弱轴方向(de)计算长度,或减小翼缘宽度加大厚度D.增大构件端部连接约束,或增加侧向支承点来减小在弱方向上(de)计算长度,或减少翼像厚度加大宽度37.单轴对称实腹式压弯构件,弯矩作用在对称平面并使较宽翼缘受压,其弯矩作用平面内(de)整体稳定采用f N N W M A N Ex x x x mx x ≤-+)/8.01(1γβϕ和f N N W M A N Ex x x tx ≤--)/25.11(2β计算,其中(de) x,W1x,W2x(de)取值为( D ) .A . x 相同;W1x 和W2x 为绕对称轴(de)较大和较小翼缘最外纤维毛截面模量B . x 不同;W1x 和W2x 为绕非对称轴(de)较大、较小翼缘最外纤维净截面模量C . x 不同;W1x 和W2x 为绕非对称轴(de)较大、较小翼缘最外纤维净截面模量D . x 不同;W1x 和W2x 为绕非对称轴(de)较大、较小翼缘最外纤维净截面模量38.高强度螺栓摩擦型连接与高强度螺栓承压型连接主要区别是( D )A.预拉力不同B.连接处构件接触面(de)处理方法不同C.采用(de)材料等级不同D.设计计算方法不同39.钢材(de)设计强度是根据( C )确定(de).(A)比例极限 (B)弹性极限 (C)屈服点 (D)极限强度40.钢结构梁计算公式nxx x W M γσ=中 x ( C ).(A)与材料强度有关(B)是极限弯矩与边缘屈服弯矩之比(C)表示截面部分进入塑性(D)与梁所受荷载有关二、填空题1.钢材五项机械性能指标是抗拉强度、屈服点、伸长率、180度冷弯、冲击韧性 .2.钢材中氧(de)含量过多,将使钢材出现热脆现象.3.支承加劲肋应验算(de)内容是腹板平面外(de)稳定性、端面承压强度、支承加劲肋与腹板(de)连接焊缝 .4.双轴对称(de)工字型截面轴压构件失稳时(de)屈曲形式是弯曲屈曲. 5.采用手工电弧焊焊接Q345钢材时应采用 E50 焊条.6.焊接残余应力不影响构件(de) 静力强度 .和 40mm .7.角焊缝(de)最小计算长度不得小于 8hf8.冷弯性能合格是鉴定钢材在弯曲状态下塑性应变能力和质量 (de)综合指标.9.时效硬化会改变钢材(de)性能,将使钢材(de) 强度提高, 塑性、韧性降低.10、轴心受压构件整体屈曲失稳(de)形式有弯曲失稳、扭转失稳、弯扭失稳 .11、钢材(de)两种破坏形式为塑性破坏和脆性破坏.12、横向加劲肋按其作用可分为间隔加劲肋、支承加劲肋两种.13、轴心受拉构件(de)承载力极限状态是以净截面平均应力小于钢材屈服点为极限状态(de).三、判断题(正确(de)画√,错误(de)画x)1. 钢材中硫含量过多会引起钢材(de)冷脆;磷含量过多会引起钢材(de)热脆.(x )2.承载能力极限状态为结构或构件达到最大承载力或达到不适于继续承载(de)变形时(de)极限状态.(√ )3.轴心受压构件,应进行强度、整体稳定、局部稳定和刚度(de)验算.(√ ) 4.轴心受拉构件计算(de)内容有强度、刚度和稳定性.(x )5.计算双肢格构式轴心受压构件绕虚轴x轴弯曲(de)整体稳定时,其轴心受压整体稳定系数φ应根据换算长细比查表确定.(√ )6.碳(de)含量对钢材性能(de)影响很大,—般情况下随着含碳量(de)增高,钢材(de)塑性和韧性逐渐增高.(x)7,承受动力荷载重复作用(de)钢结构构件及其连接,当应力变化(de)循环次数.n≥5X104次时,应进行疲劳验算.(√)=,其中t为较厚焊件厚度.(x )8.角焊缝中(de)最大焊脚尺寸hfmax9.采用普通螺栓连接时,栓杆发生剪断破坏,是因为螺栓直径过细.(√ ) 10.双轴对称截面(de)理想轴心受压构件,可能发生弯曲屈曲和扭转屈曲.(√ )11.钢结构设计除疲劳计算外,采用以概率理论为基础(de)极限状态设计方法,用分项系数设计表达式进行计算(√ ).12.合理(de)结构设计应使可靠和经济获得最优平衡,使失效概率小到人们所能接受程度( √).13.冷加工硬化,使钢材强度提高,塑性和韧性下降,所以普通钢结构中常用冷加工硬化来提高钢材强度( x ).14.在焊接结构中,对焊缝质量等级为3级、2级焊缝必须在结构设计图纸上注明,1级可以不在结构设计图纸中注明( x ).与压15.轴心受力构件(de)柱子曲线是指轴心受压杆失稳时(de)临界应力cr杆长细比之间(de)关系曲线.(√)16.格构式轴心受压构件绕虚轴稳定临界为比长细比相同(de)实腹式轴心受压构件低.原因是剪切变形大,剪力造成(de)附加绕曲影响不能忽略 ( √).17.在主平面内受弯(de)实腹构件,其抗弯强度计算是以截面弹性核心几乎完全消失,出现塑性铰时来建立(de)计算公式( x ).18.具有中等和较大侧向无支承长度(de)钢结构组合梁,截面选用是由抗弯强度控制设计,而不是整体稳定控制设计( x ).19.在焊接连接中,角焊缝(de)焊脚尺寸h f愈大,连接(de)承载力就愈高.(x ).20.计算格构式压弯构件(de)缀件时,应取构件(de)剪力和按式V =Af235/y f /85计算(de)剪力两者中(de)较大值进行计算( √ ).四、简答题1.抗剪普通螺栓连接有哪几种可能(de)破坏形式答:螺栓抗剪连接达到极限承载力时,可能(de)破坏形式有四种形式:①栓杆被剪断;②螺栓承压破坏;③板件净截面被拉断;④端板被栓杆冲剪破坏.2.简述钢结构连接方法(de)种类.答;钢结构(de)连接方法可分为焊接连接、螺栓连接和铆钉连接三种. 3.格构式构件截面考虑塑性发展吗答:格构式构件截面不考虑塑性发展,按边缘屈服准则计算,因为截面中部空心.4. 普通螺栓连接受力情况可分为哪几类答:螺栓只承受剪力;螺栓只承受拉力;螺栓承受剪力和拉力(de)共同作用. 5.减小焊接应力和焊接变形(de)设计上措施有哪些 答:1)焊接位置安排要合理; 2)焊缝尺寸要适当;3)焊缝(de)数量要少,且不宜过分集中; 4)应尽量避免两条或三条焊缝垂直交叉; 5)尽量避免在母材厚度方向(de)收缩应力. 6.影响钢材脆性(de)因素答:化学成分(P 、N 导致冷脆,S 、O 引起热脆)、冶金缺陷(偏析、非金属夹杂、裂纹、起层)、温度(热脆、低温冷脆)、冷作硬化、时效硬化、应力集中以及同号三向主应力状态等均会增加钢材(de)脆性.7.防止受弯构件腹板局部失稳(de)途径 答:(1)增加腹板(de)厚度t w 但此法不很经济;(2)设置加劲肋作为腹板(de)支承,将腹板分成尺寸较小(de)区段,以提高其临界应力,此法较为有效.加劲肋布置方式有:①仅加横向加劲肋;②同时设横向加劲肋和纵向加劲肋;③同时设横向加劲肋和受压区(de)纵向加劲肋及短加劲肋.8.请撰写轴心拉杆(de)强度计算公式,及说明各字母所代表含义答:(一)强度计算轴心拉杆(de)强度计算公式为:d f A N≤=σ式中 N ——轴心拉力;A n ——拉杆(de)净截面面积; f ——钢材抗拉强度设计值.9.影响轴心压杆整体稳定(de)因素答:轴压构件(de)稳定极限承载力受到以下多方面因素(de)影响:①构件不同方向(de)长细比;②截面(de)形状和尺寸;③材料(de)力学性能;④残余应力(de)分布和大小;⑤构件 (de)初弯曲和初扭曲;⑤荷载作用点(de)初偏心;⑦支座并非理想状态(de)弹性约束力; ③构件失稳(de)方向等等.因此,目前以具有初始缺陷(de)实际轴心压杆作为力学模型,用开口薄壁轴心压杆(de)弹性微分方程来研究轴压杆(de)稳定问题.10.拉弯和压弯构件(de)整体失稳破坏包括几个方面答:拉弯和压弯构件整体失稳破坏包括几个方面:(1)单向压弯构件弯矩作用平面内(de)失稳,这在弯矩作用平面内只产生弯曲变形,不存在分校现象,属于极值失稳;(2)单向压弯构件弯矩作用平面外失稳,即在弯矩作用平面外发生侧移和扭转,又称弯扭失稳,这种失稳具有分校失稳(de)特点;(3)双向压弯构件(de)失稳,即同时产生双向弯曲变形并伴随有扭转变形(de)失稳. 11.钢结构焊接形式答:按两焊件(de)相对位置,分为平接、搭接和顶接;对接焊缝按受力方向与焊缝长度方向(de)关系,分为直缝和斜缝; 角焊缝按受力方向与焊缝长度方向(de)关系,分为端缝和侧缝; 按焊缝连续性,分为连续焊缝和断续焊缝; 按施工位置,分为俯焊、立焊、横焊、仰焊.12.普通螺栓连接,螺栓(de)排列和构造要求; 2)螺孔中距限答:(1)受力要求: 1)端距限制——防止孔端钢板剪断,≥2d限制上限以防止板间翘曲.制——限制下限以防止孔间板破裂,即保证3d(2)构造要求:防止板翘曲后浸入潮气而腐蚀,限制螺孔中距最大值.(3)施工要求:为便于拧紧螺栓,宜留适当间距(不同(de)工具有不同要求).五、计算题1、验算图示角焊缝连接(de)强度.已知承受静荷载,钢材为Q235-AF,焊条为E43型,2160mm N f w f =,偏离焊缝形心(de)力kN F 500=,mm e 100=,mm h f 10=,图中尺寸单位:mm,无引弧板.五(1)题图解:将外力F 移向焊缝形心,得:2F N =2F V =2Fe M =23/47.66)20400(107.02210500mm N l h N w e Nf=-⨯⨯⨯⨯⨯==∑σ 23/47.66)20400(107.02210500mm N l h Vwe f =-⨯⨯⨯⨯⨯==∑τ223/95.104)20400(107.022*********mm N WM Mf=-⨯⨯⨯⨯⨯⨯⨯==σ222222/160/44.15547.66)22.147.6695.104()(mm N f mm N w f f f f =≤=++=+τβσ2、验算图示普通螺栓连接时(de)强度.已知螺栓直径mm d 22=,C 级螺栓,螺栓和构件材料为Q235,外力设计值kN F 150=,2140mm N f b v =,2170mm N f b t =,2305mm N f b c =,203.3cm A e =.五(2)题图解:kN f A N b t e b t 51.51101701003.332=⨯⨯⨯==-kN f d n N bvvb v19.531014042214.314322=⨯⨯⨯⨯==-π kN f t d N b c b c 78.1201030518223=⨯⨯⨯==-∑受力最大(de)1号螺栓所受(de)剪力和拉力分别是:kN n F N v 75.188150===kN y m My N i t 18.40)24016080(224020015022221=++⨯⨯⨯==∑ 186.0)51.5118.40()19.5375.18()()(2222<=+=+btt b v v N N N NkN N kN N b c v 78.12075.18=<= 螺栓连接强度满足要求.3.计算图示连接(de)焊缝长度.已知N=900kN (静力荷载设计值),手工焊,w 2KN N N 600900311=⨯==αKN N N 3009003122=⨯==α mm f h N l wff w 268160107.02106007.02311=⨯⨯⨯⨯=⨯= mm f h N l w f f w 134160107.02103007.02322=⨯⨯⨯⨯=⨯=mm h l l f w 288102268211=⨯+=+= 取mm l 2901=mm h l l f w 154102134222=⨯+=+= 取mm l 1552=4.试验算图示简支梁(de)整体稳定性.已知作用在梁跨中(de)荷载设计值F=300kN,忽略梁自重产生(de)内力,采用Q235钢52188.10226820622=⨯==h I W x x cm 369.5==A I i y y cm (2)内力计算 9004123004=⨯==Fl M x kNm(3)整稳计算 3.7069.54000===yy y i l λ6.035.3)8.1024.44.13.70(152188.1024.1583.70432020.12354.41432022212>=⨯⨯+⨯⨯⨯=⎥⎥⎦⎤⎢⎢⎣⎡+⎪⎪⎭⎫ ⎝⎛+=y b y x y b b f h t W Ah ηλλβϕ'b ϕ=986.035.3282.007.1282.007.1=-=-bϕ 175105218986.01090036=⨯⨯⨯='x b x W M ϕ N/mm 2<f =215N/mm 2满足 5.试验算如下图承受静力荷载(de)拉弯构件强质和刚度.已知荷载设计值N = 1600kN,F = 55kN,l = 5 m.构件截面为I45a,截面无削弱,材料为Q235-BF 钢.答案:max = max {,173 .0}= <[ ] = 150,=+nxx x W M An N γ N/mm 2< f =215 N/mm 26. 如下图所示热轧普通工字钢截面压弯构件,截面为I36a,截面无削弱.承受(de)荷载设计值为:轴心压力N =340 kN,构件C 端弯矩M x = 98 kN ·m.构件长度l =,两端铰接,两端及跨度中点各设有侧向支承点.材料Q235 - B ·F 钢.试验算该构件弯矩作用平面外稳定及刚度.答案:刚度 = max{ ox , y } = 111. 5 < [ ] = 150; 弯矩作用平面外稳定,=+xb x tx y W M A N 1ϕβηϕ N/mm 2<f =215 N/mm 2.。

时态综合练习

时态综合练习

1. The bank robbery __________ (happen) last night.2. Water __________ (boil) at the temperature of 100°C.3. This kind of TV __________ (make) in Shanghai.4. In the past, there __________ (be) only single-decker buses.5. Matter __________ (change) form one state to another.6. The electric light __________ (invent) by Edison.7. __________ (raise) your hand if you __________ (know) the answer.8. Tom __________ (drop) the vase and __________ (break) it a moment ago.9. Yesterday he __________ (not realize) what a serious mistake he __________ (make).10. The First World War __________ (take) place in 1914. Old John __________ (fight) in it.11. Don’t make any noise. The teachers __________ (have) a meeting.12. Betty __________ (make) a telephone call to her pen pal at that time yesterday.13. I __________ (not do) anything at the moment.14. He told me that my mother __________ (wait) for me outside.15. Spring is here. It __________ (get) warmer and warmer.16. What __________ you __________ (do) when I called you yesterday evening?17. All those wastes __________ (pollute) the river these years.18. My mother __________ (cook) in the kitchen when my father returned home.19. I __________ (see) him when I __________ (walk) in the past.20. It __________ (rain) at the moment, so we __________ (stay) indoors yesterday afternoon.21. I wonder if he __________ (be) able to finish his work in two days.22. You __________ (fail) in physics unless you work harder.23. She was told that a report about the matter __________ (make) the next afternoon.24. The foreigners __________ (visit) the Oriental Pearl TV Tower unless it rains tomorrow.25. Another new bridge __________ (built) over the Huangpu River next year.26. After my brother __________ (graduate) from high school he will go abroad to further his study.27. Some guests __________ (welcome) at the airport when they __________ (arrive) tomorrow.28. Mr Wang __________ (tell) that he __________ (send) to work in Tibet the next year.29. She said there __________ (be) a maths contest the next month and asked us who __________(enter) for it.30. Paul told me why he __________ (make) so many mistakes in his maths test. He said that he__________ (study) harder later on.31. George __________ (be) in business since he graduated from college.32. We __________ (learn) three thousand English words by the end of last term.33. The sheep __________ (disappear) one after another since last month.34. Don’t worry. The work __________ (finish) already.35. Mr Li didn’t go to the cinema because he __________ (see) the film before.36. The Olympic Games __________ (take) place twenty-nine times since 1896.37. I __________ (read) the Adventures of Tom Sawyer these days.38. The government __________ (make) traffic laws to reduce accidents recently.39. The room is dirty. I __________ (not clean) it for weeks.40. Peter’s mother __________ (tell) that her son __________ (apologize) to Mr Brown already forbreaking his window.( ) 1. I like this silk dress, and it _______ so soft and comfortable.A. is feelingB. feelsC. has feltD. is felt ( ) 2. The English teacher isn't here. She ______ to the office and she will be back in a minute.A. would goB. wentC. has goneD. has been ( ) 3. We won't do morning exercise if it _______ tomorrow.A. rainsB. will rainC. rainedD. rain( ) 4. Sarah _______ a bike to work, but now she drives.A. used to rideB. had riddenC. would rideD. used to riding ( ) 5. Yangpu Bridge _______ ten years ago, but it still _______ magnificent.A. built; looksB. was built; looksC. was built; lookedD. was built; is looking( ) 6. Where _______ you _______? I looked everywhere for you.A. have; goneB. did; wentC. have; beenD. are; going ( ) 7. Who _______ my pen away? I used it minutes ago.A. has takenB. will takeC. takesD. took ( ) 8. Jenny _______ the text of Lesson 3 at 8 : 00 last night.A. readB. was readingC. is readingD. would read ( ) 9. —I called you yesterday evening, but there was no answer.—Oh, I am sorry I _______ dinner at my friend's home.A. haveB. hadC. was havingD. have had ( ) 10. She didn't go to see the dolphin show ( 海豚表演) with us because she _______ it already.A. seesB. sawC. has seenD. had seen( ) 11. In old China, many palaces _______ in Beijing, Xi'an and Nanjing.A. builtB. have builtC. were builtD. were building ( ) 12. Millions of visitors came to Shanghai Expo which _______ successfully.A. is heldB. will take placeC. was heldD. take place( ) 13.—What did yow son say in the letter?—He told me that he _______ the Disney World the next day.A. will visitB. has visitedC. is going to visitD. would visit ( ) 14. When I got to the cinema, the film _______ for five minutes.A. has begunB. had begunC. has been onD. had been on ( ) 15. Coffee is ready. How nice it _______! Would you like some?A. smellsB. feelsC. soundsD. looks( ) 16. They can see the words on the blackboard clearly, so they _______ glasses.A. needn’t toB. have to notC. don't needD. don't have to ( ) 17. The Oriental Pearl TV Tower ______ tens of thousands of visitors since 1995.A. has attractedB. attractedC. attractsD. will attract ( ) 18. By the end of last month, the students _______ all the subjects they learned.A. have reviewedB. had reviewedC. reviewedD. werereviewing( ) 19. John and I are good friends. We ______ each other for ten years.A. knewB. had knownC. knowD. have known ( ) 20. Many buildings along the Bund in Shanghai _______ in 1920s or 1930s.A. was builtB. are builtC. builtD. werebuilt( ) 21. —Have you moved into the new house?—Not yet. The rooms _______.A. are paintingB. are paintedC. are being paintingD. are being painted ( ) 22. —How long has he _______ ill?—About a week. He _______ ill five days ago.A. fallen; wasB. been; fallC. been; fellD. fallen fell ( ) 23. When I saw Dick yesterday, he _______ to the music with an earphone.A. listenedB. has listenedC. was listeningD. had listened ( ) 24. _______ tum on the MP3 too loud. It's bad for your ears.A. DoB. Don'tC. Doesn'tD. Does( ) 25. Allen, together with his two friends, _______ to Beijing for a holiday this summer.A. are goingB. was goingC. will be goingD. is going ( ) 26. Ask him if the work _______ tomorrow.A. finishesB. will finishC. is finishedD. will be finished ( ) 27. Don't turn on the radio. Grandpa _______.A. sleepsB. is sleepingC. has sleptD. was sleeping ( ) 28. We _______ a physics lesson when the fire _______ out.A. are having; brokeB. have; breaksC. had; brokeD. were having; broke( ) 29. He _______ films in Asia for more than twenty years by the time he arrived in America.A. had madeB. has madeC. madeD. would make ( ) 30. Shanghai government _______ many international art festivals since last year.A. has organizedB. organizedC. is organizingD. would organize ( ) 31. The professor's talk _______ just now. You can borrow the tape if you want.A. is recordedB. will be recordedC. was recordedD. recorded( ) 32. The boy thought it _______ be more wonderful if he knew how a chick got out of an egg.A. willB. wouldC. canD. could( ) 33. They _______ each other and been in love since they were little.A. had knownB. knewC. knowD. have known ( ) 34. Oh, my God. I _______ my dictionary in the reading room just now.A. forgetB. forgotC. leftD. leave( ) 35. By the end of last year, they _______ more than six tunnels under the Huangpu River.A. builtB. have builtC. had builtD. were built ( ) 36. I don't know if he _______ tomorrow, if he _______, please call me.A. will come; comesB. comes; comesC. comes; will comeD. will come; will come( ) 37. The medicine _______ in cool and dry place.A. must keptB. must keepC. must be keptD. must be keeping ( ) 38. 242, 000 people _______ in the 1976 Tangshan earthquake in China.A. killedB. have killedC. were killedD. have been killed ( ) 39. Betty can't join us in the card game. She _______ the classroom.A. has cleanedB. was cleaningC. had cleanedD. is cleaning ( ) 40. —Did you hear someone shouting?—No. I didn't. I _______ to the music.A. listenedB. have listenedC. was listeningD. had listened ( ) 41. The World Trade Centre _______ by the terrorist attacks five years ago.A. was destroyedB. destroyC. was destroyD. destroyed( ) 42. Since the rain _______, why not go shopping now?A. has stoppedB. stoppedC. is stoppingD. stops( ) 43. AIDS is a kind of dangerous disease. Actions must _______ to stop it from spreading.A. have been takenB. takeC. have takenD. be taken( ) 44. Jack _______ over 1, 000 Chinese words since he came to China.A. has learnedB. learnC. has been learnedD. will learn ( ) 45. Jack told me that he _____ on a study trip to Australia the next month.A. will goB. goesC. has goneD. would go ( ) 46. She _______ Shanghai to attend an important conference in Japan the week after next.A. leavesB. leftC. will leaveD. has left( ) 47. My friends _______ some foreigners around the ancient church this time yesterday.A. are showingB. were showingC. showedD. had shown ( ) 48. Huge amounts of information about pollution _______ by the scientists last year.A. was collectedB. would be collectedC. were collectedD. collected( ) 49. More and more money _______ on the protection of the environment in the future.A. will spendB. may spendC. is spentD. will be spent ( ) 50. By the time Mrs. Jackson arrived in Shanghai, Mr Jackson ________ many famous cities in China.A. visitedB. was visitingC. had visitedD. has visited ( ) 51. —_______ the flight MU823 _______?—No, not yet.A. Has; arrivedB. Do; arriveC. Will; arriveD. Is; arriving ( ) 52. Now boys and girls, ______ sure to come here on time tomorrow morning.A. beB. isC. areD. being( ) 53. “Tom, _______ afraid of speaking in public. You are no longer a small boy,” said Mum.A. not beB. not to beC. be notD. don’t be( ) 54. Charlie can't go with us because he _______ a professor around our company.A. showsB. was showingC. has shownD. is showing ( ) 55. Many old houses around our school _______ next year and a large green area will appear.A. pull downB. will be pulled downC. will pull downD. are pulled down( ) 56. The 2008 Olympic Games ________ in Beijing.A. will holdB. will be heldC. were heldD. held( ) 57. Jenny ______ with a Chinese family for two years. Now she's used to the life in China.A. staysB. would stayC. is stayingD. has stayed( ) 58. Most people _______ when the big earthquake took place in that area.A. are sleepingB. were sleepingC. sleptD. sleep ( ) 59. My brother is an actor. He _______ in several films so far.A. appearsB. appearedC. has appearedD. is appearing ( ) 60. Father _______ for London on business upon my arrival, so I didn't see Mum.A. has leftB. leftC. was leavingD. had left( ) 61. The manager entered the office and was happy to learn that four-fifths of the tickets _______.A. was bookedB. had been bookedC. were bookedD. have been booked ( ) 62. —I haven't heard from Henny for a long time.—What do you suppose _______ to him?A. was happeningB. to happenC. has happenedD. had happened ( ) 63. —Why did you leave that position?—I ______ a better position at IBM.A. offerB. offeredC. am offeredD. was offered ( ) 64. When Mark opened the door, he saw a woman standing there. He _______ her before.A. never sawB. had never seenC. never seesD. has never seen ( ) 65. —What's wrong with your coat?—Just now when I wanted to get off the bus, the man next to me _______ on it.A. satB. had satC. had been sittingD. was sitting ( ) 66. Telephone messages for the manager _______ on her desk but she didn’t notice them.A. was leavingB. were leavingC. were leftD. was left。

教师职业道德综合练习题和答案

教师职业道德综合练习题一、判断题1. 教师刻苦学习,钻研业务就是唯书、唯上,多读少思。

2. 道德意义上的良心是一种道德心理现象,是指主体对自身道德责任和道德义务的一种自觉意识和情感体验,以及以此为基础而形成的对于道德自我、道德活动进行评价与调控的心理机制。

3一个教师不热爱自己的工作对象同样可以说热爱自己所从事的教书育人工作,就像一个不喜欢自己的工作的工人同样可以生产出高质量的产品一样。

4. 所谓师表美就是教师的外在形象之美。

5. 依法治教的主体就是各级行政机关。

6. 由于职业的规定性,教师的道德人格与一般道德人格有显著的不同。

7. 教师可以在"教书"实践中贯彻落实教育法律法规和其它相关的方针和政策。

8. 伦理学与心理学对人格的解释是一样的。

9. 孔子说:"少成若天性,习惯如自然"。

可见,早期家庭教育是学校教育的基础。

10. 一个教师的举止既体现了他的道德修养、文化水平,又表现出他与别人交往是否有诚意。

11. 当前的在校中小学生中独生子女占主体,由于家庭生活空间与心理空间的狭小,在很大程序上促成他们的"自我专注",教育他们学会团结协作基本不可能。

12. 团结协作与相互激励公平竞争是矛盾的。

13. 现代学校教育是一项系统工程,教师的劳动是社会劳动的一部分,是在人们的相互联系中进行的。

14. 教师在教学过程中要养成人性化的教学风格和独特的教学艺术。

15. 当今世界,科学技术突飞猛进,处于“知识爆炸”时代,所以多读书毫无用处。

16. 家长们有的"望子成龙",有的"望女成凤",这是一种错误的教育思想。

17. 教师热爱学生,一定要做到对学生公平公正,不分优劣,不分好坏,不分美丑,一视同仁。

俗话说:"严师出高徒","严是爱,松是害,不管不问要变坏",所以爱学生和严格要求学生是矛盾的。

高考英语 综合练习题

落堕市安心阳光实验学校瓯海区三溪中学高考英语综合练习题完形填空(共20小题;每小题1分,满分20分)The trip to that city was eye-opening for everyone, and near its end, all the young people in our group began to__1__ what it had meant. We looked back on the first night we had arrived. We had all gone into the markets of the city __2__ the young people could experience its energy. But what we actually saw simply __3__ us all –the old houses, the children in rags, the people begging for money… Walking home, __4__ under a low bridge, we came across entire families of __5__ people seeking a bit of dry ground to__6__ for the night. We had to step over bodies as we felt our way through the darkness.The poverty was worse off than anything my young __7__had ever imagined. Back in the hotel, an air of sadness settled over the group. Ma ny __8__ and cried out of sympathy. Spending time in this environment gets a person_9__ to care about humanity.That evening, our group spent hours talking about what we had __10__. Gently, I encouraged everyone to talk about the difficult feelings that day’s discoveries __11__. Sitting together in a __12__ as everyone could have a chance to speak, we all began to realize that __13__ of us was alone in our struggle to deal with our shocked reactions.Based on my __14__ in poverty-stricken areas, I suggested that __15__ the emotions we had were painful, they could also be important in helping us to move forward. We all __16__ that we had seen things that should never be allowed to happen. Now, what could we do about it? Together, we began to brainstorm ways we could help to __17__the suffering we had seen. As I encouraged group members to focus on what they could do, a sense of determination __18__ the sadness. __19__ despair, these young people began to feel a call to __20__ for humanism.1. A.put up with B.got back to C.reflect on D.made up for2. A.now that B.so that C.as if D.even if3. A.puzzled B.annoyed C.embarrassed D.shocked 4. A.marching B.running C.passing D.moving 5. A.homeless B.abnormal C.heartless D.selfless6. A.sleepy B.asleep C.sleep D. sleep on7. A.companies B.firms C. companions D.accompanies8. A.put down B.broke down C.turned down D.held on 9. A.moved B.embarrassed C.abandoned D.opposed10.A.inspected B.attempted C.witnessed D.challenged11.A.had inspired B.have discouraged C.had forgotten D.had appreciated12.A.rectangular B.circumstance C.cycle D.circle13.A.neither B.either C.none D.each 14.A.experiences B.schedules C.data D.position15.A.once B.while C.before D.unless16.A.supposed B.advised C.confirmed D.agreed17.A.burden B.easy C.ease D.easily18.A.changed B.replaced C.covered D.took place19. A. As well as B. in order of C. Instead ofD. In terms of20. A. action B. activity C. aggression D. appointment第一节单项填空(共15小题:每小题1分,满分15分)从所给A、B、C、D四个选项中,选出可以填入空白处的最佳选项,井在答题卡上将该项涂黑.21. Mr. Smith,________of the ________speech,started to read a novel. A.tired;boring B.tiring;bored C.tired;bored D.tiring;boring22. —I think it is the bus driver who _____ for the accident.—I totally agree with you.A. is to blameB. is going to blameC. is to be blamedD. should blame23. As he reached _____front door, Jack saw ______strange sight.A. the; 不填B. a; theC.不填aD. the; a24. -----She looks very happy.She have passed the exam.------I guess so.It’s not difficult after all.A.should B.could C.must D.might 25.A terrible earthquake ________in Sichuan Province at 2∶28 p.m. on May 12th,2008,causing a great loss of lives and property.A.broke down B.broke up C.broke in D.broke out 26.Because of my poor English. I’m afraid I can’t make myself _______by others.A. understandB. understoodC. understandingD. to understand27.________ attracts most of the visitors to the park is that there is a special kind of water from a spring tasting sweet.A.What B.Which C.That D.Why28. The father as well as his daughters _____ skating on the freezing river every Sunday afternoon.A. goB. goesC. is goingD. are going29. Her pale face suggests that she ______ in poor health and strongly suggest that she _____doctor.A. is; seesB. be; seeC. is; seeD. be; should see30. ____ makes the people in Shenzhen proud is ____ they have achieveda lot in the past ten years.A. What; becauseB. That; becauseC. That; whatD. What; that;31. —Do you mind if I smoke here?—______ I feel a bit sick.A. I’d rather you didn’t.B. Yes,please!C. Go ahead.D. Not at all32. —Can you give me the right answer ? —Sorry , I . Would you repeat that question ?A.hadn’t listened B.haven’t listened C.wasn’t listening D.don’t listen 33. As soon as they arrived at the park,they ________ themselves into several groups to help the cleaners pick up the rubbish made by the visitors.A.separated B.divided C.formed D.broke 34. ________ is no possibility ________ Bob can win the first prize in the match.A.There; that B.It; that C.There; whether D.It; whether35. The rescue work _____three parts,of which saving the people’s lives is the most important one.A.makes up of B.links to C.consists of D.divides into第二节完形填空(共20小题;每小题1.5分,满分30分)阅读下面短文,掌握其大意,从短文后所给的四个选项(A、B、C和D)中,选出可以填入空白处的最佳选项,并在答题卡上将该项涂黑。

有机综合练习1

综合练习题一一.用系统命名法命名下列化合物。

1. 2.3. 4.5. 6.7. 8.9. 10.11.12.13. 14.CH 3CH 2CH CH(CH 3)2CH 2CCH 2CH 3CH 3CH 3CH 3CH 2CC C C CH 3HCH 2CH 3CH 3Cl ClClCH 2Cl SO 3HOH C 32CHOCH 3CH 2O C O O CH 23CH 3ONO 2ONHCH(CH 3)2[HOCH 2CH 2N(CH 3)3]+OH -CH 3CHCH 2CHCH32H 53二.写出下列化合物的结构式或Fischer投影式。

1.2,2-二甲基-3,3-二乙基戊烷2.反-1-甲基-4-叔丁基环己烷(优势构象式)3.环戊二烯负离子4.间二乙烯苯5.对异丁基苄溴6.苯甲醚7.顺-1,3-环己二醇(非优势构象式)8.4,4’-二羟基二苯甲酮9.(2R,3S)-2,3-二羟基丁酸10.R-半胱氨酸11.嘌呤12.柠檬酸三.单选题。

1.下面哪个化合物不属于异戊烷光化氯代产物。

()A.异戊基氯B.2-甲-1-氯丁烷C.2-甲-2-氯丁烷D.1-氯戊烷2.1-甲基环己烯与溴化氢发生加成反应的主产物是:()A.溴甲基环己烷B.1-甲-1-溴环己烷C.1-甲-2-溴环己烷D.1-甲-3-溴环己烷3.分子式为C6H12的同分异构体中,能与溴化氢加成生成2-溴-4-甲戊烷的环烷烃是:()A.环己烷B.甲基环戊烷C.1,2-二甲基环丁烷D.1,3-二甲基环丁烷4.(1)正丁醇,(2)异丙醇,(3)叔丁醇,(4)甲醇分别与氢卤酸发生S N1反应的速度由快至慢的顺序为:()A.(1)>(2)>(3)>(4)B.(4)>(3)>(2)>(1)C.(3)>(2)>(1)>(4)D.(3)>(1)>(2)>(4)5.下列化合物中无芳香性的是:()A.环戊二烯B.环戊二烯负离子C.环丙烯正离子D.菲6.甲苯与硝酸反应最不可能得到的产物是:()A.邻硝基甲苯B.对硝基甲苯C.邻硝基苯甲酸D.间硝基甲苯7.(1)氯环己烷,(2)1-甲-1-氯环己烷,(3)1-氯甲基环己烷发生S N2反应速度由快到慢的顺序为:()A.(1)>(2)>(3)B.(3)>(1)>(2)C.(3)>(2)>(1)D.(2)>(1)>(3)8.内消旋酒石酸的构型为:()A.(R,S)B.(R,R)C.(S,S)D.(D,L)9.乙二醇与酸性高锰酸钾溶液反应的最终产物是:()A.羟基乙醛B.乙二醛C.乙二酸D.水和二氧化碳10.下列化合物中不能与氢氰酸加成的是:()A.正壬醛B.丁酮C.苯乙酮D.环己酮11.下列化合物中能和Tollens试剂反应的是:()A.乳酸B.草酸C.醋酸D.酒石酸12.下列化合物中,烯醇式最稳定的是:A.丙酮B.乙酰丙酮C.乙酰乙酸乙酯D.β-丁酮酸四.是非题:1.离域键不是共价键。

《消费者行为学》综合练习题+答案+打印

《消费者行为学》综合练习题一、填空题1.消费者是指购买、使用各种消费品(包括服务)的个人或居民户。

2.人的一生要消费许多物质和非物质产品,有的基于生理需要,叫做本能性需要;有的基于享受和发展的需要,叫做社会性需要。

3.消费者行为是指消费者为获取、使用和处置消费品所采取的各种行为以及先于且决定这些行为的决策过程。

4.消费者对自身的需求有时并不能十分清楚的意识到,企业可以利用这个特点来激发消费者的需要,这是消费者行为的可诱导特点,但在实际操作中应注意合乎社会、法律的规范。

5.消费者行为研究的发展历程包括萌芽时期、应用时期和变革与发展等三个阶段.6.消费者行为的研究始于19世纪么到20世纪初,美国学者凡勃伦的炫耀性消费,作为一门学科是在20世纪60年代以来,并首先在美国的大学出现。

7.消费者行为研究的方法很多,如实验法、观察法、问卷调查法、个案研究法、跨文化研究发法等等。

8.根据消费者决策过程所经历阶段的不同,消费者购买决策分为三种类型扩展型、有限型和名义型.9.扩展型决策是指消费者对某产品和品牌不熟悉的情况下所作出的决策,发生在消费者介入程度较高,品牌差异程度较大,消费者购买斟酌的时间较长的情况下作出的决策。

10.影响消费者购买行为的个人因素主要有人口统计,个性与自我冲突和生活方式.11.对于特定的购买问题消费者是否广泛搜集信息取决于三方面介入程度、产品差异程度和时间压力.12.扩展型决策过程包括:认识问题、搜集信息、评价品牌、购买和购后评价等五个步骤13.名义型购买决策通常发生在购买介入程度很低的情况下,包括两种类型忠诚型和习惯型。

14.问题认识是由于意欲状态与感知状态存在差距,促使其采取某种决策行为,其原因在于差距大小、问题的相对重要性。

15.消费者一旦确定有必要采取行动解决问题时,就会从个方面搜集信息,其方式主要有内部信息、外部信息两种。

16.消费者需要是指消费者在生理和心理上的匮乏状态,根据其历史起源划分为生理性需要和社会性需要。

  1. 1、下载文档前请自行甄别文档内容的完整性,平台不提供额外的编辑、内容补充、找答案等附加服务。
  2. 2、"仅部分预览"的文档,不可在线预览部分如存在完整性等问题,可反馈申请退款(可完整预览的文档不适用该条件!)。
  3. 3、如文档侵犯您的权益,请联系客服反馈,我们会尽快为您处理(人工客服工作时间:9:00-18:30)。

1 / 2 综合练习37 【阅读理解】 A recent report from Dazhou Daily says about 18% of Dazhou teenagers can have problems with their minds(内心,精神). Some students become worried because they have to study very hard. Others have trouble getting on well with people like their parents and classmates. Zhang Qiang, a Junior 2 student from Dazhou, could not understand his teachers in class and was doing badly in his lessons. He was afraid of exams. When he looked at the exam paper, he couldn’t think of anything to write. Another student, a 15-year-old girl called Wu Yan from Guang’an often argued with her classmates even her parents because of some different ideas. She became so annoyed about them that she started to cut her finger with a knife. However, many students who have problems won’t go for advice or help. Some think they will look stupid(愚蠢的) if they go to see a doctor. Others don’t want to talk about their secrets. In order to solve the teenagers’ problems, here is some advice : ●Talk to your parents or teachers often. ●Take part in group activities and play sports. ●Go to see a doctor if you feel unhappy or unwell. 51. It is reported that students in Dazhou can have problems with their minds. A. most B. many C. some D. all the 52.From the passage we know teenagers have problems with their minds because of . A. their study B. getting on with other people C. their hobbies D. A and B. 53. Wu Yan started to cut her finger with a knife because . A. she couldn’t get on well with her classmates and even her parents B. she could not understand her teachers in class C. she was afraid of exams D. she had no money for a new shirt 54. Why don’t the students who have problems want to go for help ? A. Because they think no one will help them. B. Because they don’t want to talk about their secrets and they think it’s stupid to see a doctor. C. Because they think they can solve the problems by themselves. D. Because they think the doctors could do nothing with their problems. 55. How many pieces of advice are given to the teenagers who have problems in this passage? A. Two. B. Three. C. Four. D. Five.

【回答问题】 Do you think that French fries are really French? French fries are called "pommes frites" in France and they are not from France. French fries come from Belgium(比利时) originally. French fries are made of potatoes, and they are cut and fried. The fried potatoes are called French fries because they were fist seen by Americans in Belgium, but they were fried in the French way. The French way is to fry potatoes twice with a small pause in the middle. During World War I, there were a lot of hungry American soldiers in Northern France and Belgium. They ate French fries in Belgium. After the war was over, the soldiers went back home to America. However, they missed French fries so much that they made French fries at home. That's how French fries were fist introduced to America. French fries were called Belgian fries once, but the name was finally changed to French fries. Sometimes French fries are just called fries. French fries are one of the most popular potato foods in America. American fast food restaurants such as McDonald's and Burger King have French fries on their menus. French fries are freshly fried, and usually served with hamburgers. If you visit any fast food restaurant in America and order a hamburger, you will probably hear "You want fries with that?" Why don't you think about the history of French fries a little while, and say "Yes, please. Thank you." 1.What are French fries made of? ______________________________ 2 / 2

2.Where do French fries originally come from? ______________________________ 3.Why are the fried potatoes called French fries? ______________________________ 4.Who first introduced French fries to America? ______________________________ 5.What does the underlined "that" in the last paragraph refer to?

【完形填空】 Different things usually stand for different feelings. Red, for example, is the color of fire, heat, blood and life. People say red is an exciting and active color. They associate(使发生联系) red with a strong feeling like 1 . Red is used for signs of 2 , such as STOP signs and fire engines. Orange is the bright, warm color of 3 in autumn. People say orange is a 4 color. They associate orange with happiness. Yellow is the color of __5__. People say it is a cheerful color. They associate yellow too, with happiness. Green is the cool color of grass in __6__. People say it is a refreshing color. In general, people __7__ two groups of colors: warm colors and cool colors. The warm colors are red, orange and __8__. Where there are warm color and a lot of light, people usually want to be __9__. Those who like to be with __10 _ like red. The cool colors are __11_ and blue. Where are these colors, people are usually worried. Some scientists say that time seems to __12 _ more slowly in a room with warm colors. They suggest that a warm color is a good __13_ for a living room or a __14_ . People who are having a rest or are eating do not want time to pass quickly. __15 colors are better for some offices if the people working there want time to pass quickly. 1. A. sadness B. anger C. administration D. smile 2. A. roads B. ways C. danger D. places 3. A. land B. leaves C. grass D. mountains 4. A. lively B. dark C. noisy D. frightening 5. A. moonlight B. light C. sunlight D. stars 6. A. summer B. spring C. autumn D. winter 7. A. speak B. say C. talk about D. tell 8. A. green B. yellow C. white D. gray 9. A. calm B. sleepy C. active D. helpful 10. A. the other B. another C. other one D. others 11. A. black B. green C. golden D. yellow 12. A. go round B. go by C. go off D. go along 13. A. one B. way C. fact D. matter 14. A. factory B. classroom C. restaurant D. hospital 15. A. Different B. Cool C. Warm D. All

相关文档
最新文档