模拟测试题(1-7)带答案
部编历史八年级上册月考测试题(1-7课)含答案
【月考】部编历史八年级上册月考测试题（1-7课）含答案一、选择题（50分）1.近代英国对中国发动侵略战争的根本目的是（）A．保护鸦片贸易B．割占中国领土C．打开中国市场D．传播文明2.我们把鸦片战争作为中国近代史的开端的最主要依据是（）A．中国开放了通商口岸B．中国的社会性质发生了变化C．中国签订了不平等条约D．中国失败了3．我们说第二次鸦片战争是鸦片战争的继续，主要依据是（）A．两次战争的性质和目的相同B．英国都是发动战争的元凶C．都从进攻广东沿海地区开始D．都签订了不平等条约4．“每一县或一州，农之食烟者十之二，工之食烟者十之六，兵之食烟者十之八，仕之食烟者过半。
”“十室之邑，必有烟馆。
”这说明清朝（）A．军民体质下降B．吸食鸦片现象普遍C．林则徐禁烟无成效D．白银大量外流5．这场战争把沉重的震撼带到了中国社会的中枢，使上国帝京一时成为夷狄世界。
经历了这场英法联军之役后，士大夫们痛苦地名之曰“庚申之変”。
“这场战争”是指（）A．鸦片战争B．第二次鸦片战争C．甲午中日战争D．八国联军侵华战争6．下列文件属于太平天国的有（）①《天朝田亩制度》②《海国图志》③《资政新篇》④《权利法案》A．①② B．③④C．①③ D．①④7．在历史学习中，我们经常会碰到“历史现象”与“历史结论”的区别间题。
历史结论是对历史现象的理性认识和基本判断基础上形成的结论。
下列属于历史结论的是（）A．1839年6月，林则徐下令虎门销烟B．1851年，洪秀全发动金田起义C．1860年前后，沙俄侵占我国150多万平方千米的领土D．鸦片战争改变了中国历史发展的进程8．19世纪，在中国近代化探索的历程中，国人相继走过了自救之路、维新之路，但都没有完成反帝、反封建的历史使命，探索之路任重道远。
此文中“自救之路”“维新之路”分别是指（）A.洋务运动、辛亥革命B.新文化运动、五四运动C.洋务运动、戊成变法D.五四运动、戊成变法9．有学者认为，戊戌变法所传播的西方政治学说和自然科学知识，将统治中国人几千年的封建思想打开了缺口。
模拟考试题及答案小学
模拟考试题及答案小学模拟考试题及答案（小学）一、选择题（每题2分，共20分）1. 下列哪一项不是中国的传统节日？A. 春节B. 端午节C. 圣诞节D. 中秋节答案：C2. 地球的形状最接近于：A. 圆形B. 正方形C. 椭圆形D. 正方体答案：C3. 下列哪种动物不是哺乳动物？A. 狗B. 猫C. 鸡D. 羊答案：C4. 以下哪一项不是四大发明之一？A. 造纸术B. 印刷术C. 指南针D. 望远镜答案：D5. 以下哪个国家不是联合国安全理事会常任理事国？A. 中国B. 法国C. 德国D. 俄罗斯答案：C6. 以下哪个数字是最小的自然数？A. 0B. 1C. 2D. 3答案：A7. 以下哪个选项是正确的？A. 2+3=6B. 3×4=12C. 5-2=3D. 8÷2=5答案：B8. 以下哪个选项是正确的？A. 正方形的四条边都相等B. 长方形的对边相等C. 三角形的内角和是360度D. 圆的周长是直径的两倍答案：A9. 以下哪个选项是正确的？A. 长江是中国最长的河流B. 黄河是中国最长的河流C. 珠江是中国最长的河流D. 黑龙江是中国最长的河流答案：A10. 以下哪个选项是正确的？A. 一年有13个月B. 一年有12个月C. 一年有11个月D. 一年有10个月答案：B二、填空题（每题2分，共20分）11. 中国的首都是________。
答案：北京12. 地球围绕太阳转一圈的时间是________年。
答案：113. 世界上最大的哺乳动物是________。
答案：蓝鲸14. 世界上最高的山峰是________。
答案：珠穆朗玛峰15. 人体最大的器官是________。
答案：皮肤16. 世界上最长的河流是________。
答案：尼罗河17. 世界上最大的沙漠是________。
答案：撒哈拉沙漠18. 世界上最深的海沟是________。
答案：马里亚纳海沟19. 世界上最大的淡水湖是________。
500题模拟考试题及答案
500题模拟考试题及答案一、选择题（共200题）1. 题目：下列哪个选项是正确的描述？A. 地球是平的B. 太阳是银河系的中心C. 光速在真空中是恒定的D. 所有物体在真空中下落速度相同答案：C2. 题目：以下哪项不是计算机病毒的特征？A. 可自我复制B. 有潜伏期C. 总是对计算机系统有益D. 可通过网络传播答案：C...200. 题目：以下哪个是正确的数学公式？A. \( E = mc^2 \)B. \( F = ma \)C. \( P = IV \)D. 所有选项都是正确的答案：D二、填空题（共100题）1. 光合作用是植物通过______进行能量转换的过程。
答案：叶绿体2. 牛顿第二定律描述了力和加速度的关系，其公式为______。
答案：F = ma...100. 相对论中，时间膨胀效应表明，相对于静止观察者，运动中的物体的时间会变______。
答案：慢三、简答题（共100题）1. 简述牛顿第三定律的内容。
答案：牛顿第三定律，又称作用与反作用定律，指出对于任何两个相互作用的物体，它们之间的作用力和反作用力总是大小相等、方向相反。
2. 解释什么是生物多样性。
答案：生物多样性指的是在一个特定生态系统中，生物种类的丰富程度，包括物种多样性、遗传多样性和生态系统多样性。
...100. 描述什么是市场经济及其基本特征。
答案：市场经济是一种经济体系，其中产品和服务的生产和分配主要由市场机制决定，即供求关系。
其基本特征包括私有财产、自由竞争、价格机制和市场信息的自由流动。
四、论述题（共50题）1. 论述可持续发展的概念及其重要性。
答案：可持续发展是指在满足当代人需求的同时，不损害后代人满足其需求的能力的发展方式。
它强调经济、社会和环境三者之间的平衡，以确保长期的环境健康和社会福祉。
2. 分析全球化对经济、文化和社会的影响。
答案：全球化促进了国际贸易和资本流动，加速了技术传播和文化交流，但也带来了文化同质化、经济不平等和社会分裂等问题。
2022新版语文课程标准精编模拟测试题及答案(七)
2022新版语文课程标准模拟测试题及答案(七)一、填空题(每个小题2分，共30分)1. 的统一，是语文课程的基本特点。
语文课程应致力于学生语文素养的形成与发展。
(工具性与人文性)2.语文课程的理念之一在于增强课程实施的情境性和实践性，激发学生的好奇心、求知欲等，积极倡导的学习方式。
(自主合作探究)3. 是学生通过课程学习逐步形成的正确价值观、必备品格和关键能力，是课程育人价值的集中体现。
(核心素养)4. 是指学生在语文学习过程中的联想想象、分析比较、归纳判断等认知表现，主要包括直觉思维、形象思维、逻辑思维、辩证思维和创造思维。
(思维能力)5、新课程教学的总目标在于通过语文课程的学习，培养学生的爱国主义、集体主义、社会主义思想道德，逐步形成正确的、人生观、价值观。
(世界观)6.第四学段要求学生养成默读习惯，有一定的速度，阅读一般的现代文，每分钟不少于字。
(500)7.课堂教学评价是过程性评价的主渠道。
教师应树立一体化的意识，科学选择评价方式，合理使用评价工具，妥善运用评价语言，注重鼓励学生，激发学习积极性。
(教-学-评)8.语文教师要养成良好的读书习惯，不断丰富语言学、文学、教育学、心理学等方面的知识，注重中华优秀传统文化积累，提升自身(文化修养)。
9.语文教学课程的主题与载体形式包括中华优秀传统文化、社会主义先进文化。
(革命文化)10. 义务教育语文课程的内容主要以组织与呈现。
(学习任务群)11.在发展型学习任务群的实用性阅读与交流中，整体应紧扣特点，结合日常生活的真实情境进行教学。
(实用性)12.拓展型学习任务群的跨学科学习旨在引导学生在综合运用多学科知识发现问题、分析问题、解决问题的过程中，提高能力。
(语言文字应用)13.学业质量是学生在完成课程阶段性学习后的学业成就表现，反应要求(核心素养)14.在课程实施过程中，教师应把作为语文教学的根本任务，清晰、明确的体现教学目标的育人立意。
(立德树人)15.教师在课程实施中应善于创设真实而富有意义的凸显语文学习的实践性。
临床助理医师考前模拟试题(7)(精选)
临床助理医师考前模拟测试试题1、动脉粥样硬化导致器官病变最常见的是哪一类A.肾动脉B.肠系膜动脉C.冠状动脉D.脑动脉E.下肢动脉【答案】C2、通气／血流比值增大，表明肺内出现A.解剖无效腔增大B.肺泡无效腔增大C.解剖动-静脉短路D.功能性动-静脉短路E.肺内气体交换障碍【答案】B3、左侧继发性三叉神经痛.除出现左面部痛觉减退外.尚有的体症为A.左角膜反射消失.下颌向右偏斜B.左角膜反射存在.下颌向右偏斜C.左角膜反射消失.下颌无偏斜D.左角膜反射消失.下颌向左偏斜E.左角膜反射存在.下颌无偏斜【答案】A4、关于病人的道德权利.下述提法中正确的是A.病人都享有稀有卫生资源分配的权利B.病人都有要求开假休息的权利C.医生在任何情况下都不能超越病人要求保密的权利D.病人被免除社会责任的权利是随意的E.知情同意是病人自主权的具体形式【答案】E5、每100Kcal热量的混合膳食产生的内生水是A.8mlB.10mlC.12mlD.14mlE.16ml【答案】C6、下列关于通气血流比值的描述哪一项是不正确的A.安静时正常值为0．84B.通气血流比值减少，意味着生理无效腔增大C.肺动脉栓塞时，比值增大D.肺尖部比值增大，可达3E.肺下部部分血流得不到充分气体交换，比值减少【答案】B7、与甲泼尼龙冲击治疗无关的副作用是A.水钠潴留B.血压高C.血糖高D.白细胞降低E.感染【答案】D8、HLA-I类抗原不在下列哪一种细胞表面表达A.淋巴细胞B.成熟红细胞C.血小板D.网织红细胞E.粒细胞【答案】A9、细胞外钾离子浓度的增加会导致A.静息电位绝对值增大B.峰电位幅度加大C.去极化速度加快D.静息电位绝对值减小E.对膜电位影响不大【答案】D10、下列关于急性坏死性胰腺炎的描述中哪项是错误的A.体温＞38．O℃.脉搏＞100次／分B.恶心呕吐.腹胀C.全腹压痛和反跳痛，上腹部最明显D.腹腔穿刺液测定淀粉酶不高E.B超示胰腺肿大，回声不均匀【答案】D11、下列真菌中，最易侵犯脑组织的是A.红色毛癣菌B.酵母菌C.黄曲霉菌D.新型隐球菌【答案】D12、清创的原则，下列各项中不正确的是A.清除伤口内异物B.切除失去活力组织C.彻底止血D.根据情况缝合伤口E.必须放置引流【答案】E13、急性肾小球肾炎最常发生于哪种感染之后A.链球菌B.葡萄球菌C.支原体D.病毒E.原虫及寄生虫【答案】A14、需做病原菌分离才能明确诊断的疾病是A.肉毒中毒B.破伤风D.军团菌肺炎E.白喉【答案】D15、导致肠道菌群失调最主要的诱因是A.粘膜面损伤B.抗生素的滥用C.细菌寄居部位的改变D.免疫抑制剂的应用E.放疗化疗的应用【答案】B16、下列对绿脓杆菌（铜绿假单胞菌）作用最强的氨基苷类抗生素是A.卡那霉素B.庆大霉素C.阿米卡星D.妥布霉素E.链霉素【答案】D17、下列疾病中属于心身疾病的是A.精神分裂症B.抑郁症C.消化性溃疡D.大叶性肺炎E.精神发育迟滞【答案】C18、诊断成年女性贫血的标准为血红蛋白浓度低于A.140g/LB.130g/LC.120g/LD.110g/LE.100g/L【答案】D19、患者经临床血象检查和B超已确定为肾综合征出血热肾破裂，采取下列什么措施不适宜A.根据失血情况输血B.适当止血药物C.立即送省城大医院手术D.严密观察病情变化E.绝对卧床减少活动【答案】C20、糖皮质激素类药物可用于治疗A.原发性血小板增多症B.急性淋巴细胞白血病C.慢性粒细胞白血病D.真性红细胞增多症E.骨质疏松【答案】B21、下列哪些有关头孢菌素类叙述是错误的A.对繁殖期的细菌有杀菌作用B.具有和青霉素类似的抗菌谱及化学结构C.与青霉素类有交叉过敏反应D.能耐受β-内酰胺酶灭活E.均为抑制细菌蛋白质合成而发挥作用【答案】E22、诊断绞窄性肠梗阻最可靠的依据是A.阵发性腹部绞痛B.有气过水音和金属音C.X线检查小肠有多个阶梯状液平D.频繁呕吐.呕吐物为胃肠液E.腹肌紧张.有压痛和反跳痛【答案】E23、关于医疗机构的医疗收费下列表述最准确的是A.必须按照人民政府的有关规定收取医疗费用B.必须按照物价部门的有关规定收取医疗费用C.必须按照物价部门的有关规定收取医疗费用，并出具收据D.必须按照物价部门的有关规定收取医疗费用，详列细项，并出具收据E.必须按照人民政府或者物价部门的有关规定收取医疗费用，详列细项，并出具收据【答案】E24、男孩.3岁.出生时正常.母乳喂养.5个月后智能渐落后.头发变黄.肤色变白.有时发生抽搐.肌张力较高。
赌博模拟测试题及答案
赌博模拟测试题及答案一、选择题（每题2分，共20分）1. 赌博的定义是什么？A. 一种娱乐活动B. 一种投资方式C. 一种非法行为D. 一种社交活动2. 赌博可能带来哪些负面影响？A. 增加个人财富B. 家庭破裂C. 社会稳定D. 个人健康3. 根据法律规定，以下哪项行为属于赌博？A. 购买彩票B. 参加抽奖活动C. 参与非法赌博D. 参与股票交易4. 赌博成瘾是一种心理疾病，以下哪项不是赌博成瘾的表现？A. 持续赌博B. 赌博行为难以自控C. 赌博后感到内疚D. 赌博导致财务自由5. 赌博对社会有哪些潜在的危害？A. 促进经济发展B. 增加社会犯罪率C. 提高社会稳定性D. 增强社会凝聚力6. 以下哪个国家或地区对赌博有严格的法律限制？A. 澳门B. 拉斯维加斯C. 新加坡D. 伊朗7. 赌博成瘾者通常需要哪些帮助？A. 法律援助B. 心理治疗C. 经济援助D. 社交活动8. 赌博行为在哪些情况下可能被视为合法？A. 在私人场所B. 在赌场C. 在公共场所D. 在任何地方9. 赌博成瘾者在戒赌过程中可能面临哪些挑战？A. 经济压力B. 家庭支持C. 社会歧视D. 个人意志力10. 赌博行为可能导致哪些法律后果？A. 罚款B. 监禁C. 社区服务D. 所有以上答案：1. C2. B3. C4. D5. B6. D7. B8. B9. A10. D二、判断题（每题1分，共10分）1. 赌博是一种合法的娱乐活动。
（×）2. 赌博成瘾是一种可以自我控制的行为。
（×）3. 赌博可以作为一种投资方式。
（×）4. 所有国家和地区都允许赌博行为。
（×）5. 赌博成瘾者不需要心理治疗。
（×）6. 赌博行为在赌场内是合法的。
（√）7. 赌博成瘾者在戒赌过程中不需要家庭支持。
（×）8. 赌博行为可能导致个人财务危机。
（√）9. 赌博行为对社会没有任何负面影响。
初一摸底考试题型及答案
初一摸底考试题型及答案一、选择题（每题2分，共20分）1. 下列哪个选项是正确的？A. 地球是平的B. 地球是圆的C. 地球是三角形的D. 地球是正方形的答案：B2. 太阳系中，哪颗行星离太阳最近？A. 地球B. 火星C. 水星D. 金星答案：C3. 以下哪个数字是质数？A. 4B. 6C. 7D. 10答案：C4. 以下哪个选项是化学元素？A. 氢B. 氧C. 铁D. 所有选项答案：D5. 以下哪个国家位于亚洲？A. 巴西B. 阿根廷C. 中国D. 澳大利亚答案：C6. 以下哪个选项是正确的？A. 光速是宇宙中最快的速度B. 光速是宇宙中最慢的速度C. 光速是宇宙中中等速度D. 光速是可变的答案：A7. 以下哪个选项是正确的？A. 一年有13个月B. 一年有12个月C. 一年有11个月D. 一年有10个月答案：B8. 以下哪个选项是正确的？A. 植物通过光合作用产生氧气B. 植物通过光合作用产生二氧化碳C. 植物通过光合作用产生水D. 植物通过光合作用产生甲烷答案：A9. 以下哪个选项是正确的？A. 人体最大的器官是心脏B. 人体最大的器官是大脑C. 人体最大的器官是皮肤D. 人体最大的器官是肝脏答案：C10. 以下哪个选项是正确的？A. 人类的祖先是恐龙B. 人类的祖先是猿猴C. 人类的祖先是鱼类D. 人类的祖先是鸟类答案：B二、填空题（每题2分，共20分）1. 地球的自转周期是______小时。
答案：242. 地球的公转周期是______年。
答案：13. 世界上最大的海洋是______。
答案：太平洋4. 世界上最高的山峰是______。
答案：珠穆朗玛峰5. 人体最长的骨头是______。
答案：股骨6. 人体最大的淋巴器官是______。
答案：脾脏7. 人体最大的肌肉是______。
答案：臀大肌8. 人体最大的腺体是______。
答案：肝脏9. 人体最大的细胞是______。
答案：卵细胞10. 人体最大的器官是______。
剑桥商务英语BEC模拟测试题(附答案)
剑桥商务英语BEC模拟测试题（附答案）一.READINGPART ONEQuestions 1-7. Read these sentences and the following business index.. Which advisor each sentense (1-7) describe?. For each sentence mark one letter (A , B ,C ,D or E) on your Answer Sheet.ExampleThe company invests a large sum of money in high technology.Answer: E1. It is engaged in the expansion of a telecommunications line.2. No other steel industries have such a high rating. .3. The company is the chief holder of a British company's shares.4. As much as forty million U. S. dollars are invested in Taiwan.5. It has business transactions with an American company.6. The company gets a very high interest rate from its stocks.7. Agreements were signed between two companies about technological cooperation.A. Telecom Asia Corporation Limited (Thailand )-It serves as international advisor in connection with the debt and equity financing for a US $3 billion telephone line expansion project in Bangkok. (Current)B. Singapore Telecom international Pte. Ltd. (Singapore)- It acquires its 50/00 interest in Cambridge Holding Ltd. ,the controlling shareholder of Cambridge Cable Ltd. of the U. K. (6/1992)C. Pohang Iron 6 Steel Co. ,Ltd. (Korea) .In connection with its ratings with Standard & Poor's and Moody's investor Services. The company obtained the highest rating of any steei company in the world. (II/1991)D. Goldstar Co. ,Ltd. (Korea)In its investiment in ,and technology agreements with ,Zenith Electronics of the U. S. -the first transaction of this type in Korea. (2/1991 )E. Concord Venture Capital Co. , Ltd.(Taiwan) '-Structured ,marketed to investors and made a principal investment in the Fund with total equity of NT $ 940 million(US $ 40 million) to invest in Taiwanese high-technology venture capital opportunities. (I/1991)PART TWOQuestions 8-1 2. Read this advertisement of a Canadian computer incorporation.. Choose the best sentence from the list A-I on page 5 to fill each of the blanks.. For each blank (8-12)mark one letter(A -I) on your Answer Sheet.. Do not mark any letter twice.. One answer has been given as an example.AST'S BRAVO FAMILYOur new and improved Bravo series of personal computers is designed to do calculations in a new way. . .. . ..example . . . . . .For example , the new Bravo MT has the same features of Intel's very fast Pentium 60MHz microprocessor. It's all the power you need to run an entire workgroup or the latest graphics-intensive programs, and processes even the most complicated mathematical calculations five times faster than the DX2/66. ...... . . 8...... . . It's perfect for the power user who demands high performance at an attractive price point.Also new from AST is our latest generation of Bravo LC desktops, a value line of energy efficient 486 personal computers. Our entire Bravo LC family ,while still affordable, has new muscle--Intel 486 microprocessors up to 100 MHz and a VESA Local Bus slot. Today, it's fast, tomorrow it could be even faster, if you choose to raise it to Intel's Pentium Over Drive processor. How about more performance in less space? The Bravo LP is a low profile 486 , loaded with award-winning engineering. ... ... 9 ... ... And the graphics RAM can be enlarged to ZMB for 64-bit processing. Our new Bravo NB notebook computers, recently named the number one of the 20 world's topnotebook computers ,are some of our best examples of the Bravo family. ... ...10 ... ... It is particularly ideal for small businesses ,home offices ,and mobile users.With Bravo , there's something for everyone. Including high value , performance , and the most responsive around the-clock phone support anywhere. ... ... 11 ... ...By the way ,our 486 Bravos are all approved by the Environmental Protection Agency.... ...12... ...For an AST reseller near you ,please call 800 876- 4 AST.Example: CA. Would you expect anything from the world's fifth largest (and growing )personal computer company?B. In addition ,you'll find .yourself in the enjoyment of free maintenance andtransportation.C. If you want speed, power, expandability, and dazzling graphics performance at a very affordable price, you'll find it in our Bravo personal computers.D. The MT also comes with two AL-slots for graphic upgrades and installed windows-based software solutions.E. So , you'll save energy , money ,and perhaps a few trees.F. For instance, innovative security features help you keep your most confidential work to yourself.G. As a result, you need a certificate issued by the Environment Protection Agency if you buy a personal computer.H. The Bravo NB4/33 is even thinner, lighter ,faster , and more affordable- using very little power with a longer battery life.I. Finally, the DX2/66 is inferior to our Bravo MT in speed, function andgraphics performance.PART THREEQuestions 13-20. Read this brochure about the Canadian city, Saint John, and answer questions 13 to 20 that follow.Canada's Most Cost-Effective CityIn today's business climate, every corporate decision is measured by one standard-how it influences bottom line. So for businesses in Saint John, New Brunswick , important decisions usually comes easier. The reason? Saint John is the country's most cost-effective city.Many Companies ,including major telemarketing operations ,are moving in to take advantage of substantially more competitive operating costs for human resources , workers' compensation, telecommunications and business convenience.1. In Saint John, city center rents run approximately one-third less than the national average. Downtown Class A office space ranges in price from the low to mid teens. Class B rents for much lower fees. Salaries cost an average of 23 percent less when compared to other major centers. These reduced costs and lower household expenses make for a winning combination where employers and employees both benefit. .2. From superhighways to future highways ,Saint John has it all. Leading-edge technology supplied by companies like NBTel will link your firm to the world. Combine this technology with low-cost telecommunications rates and round-the-clock service ,and you have three good reasons why national firms like Northern Telecom ,Canada Trust and Meditrust now call Saint John home.3. NBTel's Competitive telecommunications rates can help an employer realize annual savings of 25 percent and more. Lower property and commercial taxes ,Canada's second lowest electric power rates, and no business of salary taxes make. Saint John an ideal cost-saving location. In recent comparative studies to detemine the least expensive city center, Saint John ranked number one compared to 27 U. S. cities.4. Saint John means profitability and good business sense. To help companies considering business expansion or relocation ,the newly created Greater Saint John Economic Development Commission is ready to take an active role in your evaluation process. General manager Steve Carson says the Commission's role is simple :We'rehere to make it easier to set up or expand a business in Saint John.Questions 13-16. For questions 13-1 6,choose the correct title for each paragraph from the box below.. For each paragraph (1-4)mark one letter (AG) on your Answer Sheet.. Do not mark any letter twice.13. Paragraph 1 ...... . ...... .14. Paragraph 2 ...... . ...... .15. Paragraph 3 ...... . ...... .16. Paragraph 4 ...... . ...... .A. Low living costB. Good traffic and telecommunication servicesO. Sanit John's cheap rentsD. Two classes of rentsE. The number one expensive city centerF. Encouragement for new business activitiesG. Good business senseQuestions 17-20. Using the information in the text , complete each sentence 17-20 ,with a phrase from the list below (A -G) .. For each sentence (17 20) mark one letter (AG) on your Answer Sheet.. De not mark any letter twice.17. The task of Greater Saint John Economic Development Commission is to. . . . . .18. In Saint John, employees'wages. . . . . .19. There are a few reasons why national companies. . . . . .20. In Saint John ,New Brunswick it is easier than elsewhere for companies to. . . . .A. cost twenty-three percent less than other major centersB. make important decisionsC. take advantage of human resourcesD. link your business to others all over the worldE. determine the cheapest city centerF. consider Saint John to be their homeG. help set up or expand a business in this cityPART FOURQuestions 21 -35. Read this advertisement.. Choose the best word to fill each gap.. For each question (21 35) mark one letter (A , B ,C ,D)on your Answer Sheet.. One answer has been given as an example.Too much to read! It's impossible to find time to read today's top business books-and thousands are published each year. Yet not keeping up with those books could be a serious-and expensive mistake. Often the ideas and insights they . . . . . . example. . . . . are available nowhere else. But how can you even. . . . . .21. . . . . . which titles are worthwhile-let alone find time to read them? Fortunately, there's a . . . .. .22. .. . . . : Soundview Executive Book Summaries. It really. . . . . .23.. . . . . In fact, it's . . . . . . 24. . . . . . to work. It is ingenious and essential. Every month, you . . . . . . 25. . . . . two or three quick reading, time saving . . . . . .26. . . .. . of the best new business books. Each contains all the key points in the . . . . . . 27. . . . . . book. The big difference ,instead of 200 to 500 pages ,the summary is only & pages. Instead of . . . . . . 28. . . . . . five ,ten or more hours to read ,it takes just 15 minutes.Of the thousands of business books . . . . . . 29. . . . . .annually, only a . . . . . . 30. . . . . .are really worth reading. To save your time, our Editorial Board goes over them all . . . . . . 31. . . . . .90%. Our standards are . . . . . . 32. . . . . .,and the criteria rigorous.When a book meets all our tests, we prepare a Summary, instead of a review or a digest. You get a skillful distillation that preserves the content ad spirit of the . . . . . . 33. . . . . .books. The titles cover every. . . . . . 34. . . . . .of concern to business people today. There's . . . . . . 35. . . . . .else like Soundview Executive Book Summaries.Example:A. expressB. understandC. containD. findAnswer: C21 . A. see B. know C. ask D. answer22. A. answer B. solution C. question D. problem23. A. works B. costs C. sells D. buys24. A. guarded B. granted C. guided D. guaranteed25. A. pay B. send C. receive D. buy26. A. titles B. summaries C. names D. prices27. A. original B. first C. same D. another28. A. spending B. costing C. taking D. sitting29. A. publicized B. polished C. published D. popularized30. A. dozen B. little C. handful D. couple31. A. choosing B. eliminating C. writing D. publishing32. A. high B. low C. expensive D. cheap33. A. entire B. tired C. entering D. old34. A. word B. subject C. sentence D. idea35. A. something B. anything C. all D. nothingPART FIVESection AQuestions 36-40. Read this text about a Japanese company.. In most of the lines (36-40) there is one extra word which does not fit in. One or two line, however , are correct.. If the line is correct ,put a tick (√)in the space on your Answer Sheet.. If there is an extra word in the line, write that word in the space on your Answer Sheet. Example :For short distance, it uses its own' self airplanes. For international ...self...flights it calls on leading airlines including the Japanese Airlines. ... .. √.. . ..LUFTHANSE , WELCOME ON ABOARDIt's only normal that a service-oriented company should look to other36. service companies as partners. The reputation for excellence of every each37. of DHL's partners strongly motivated its choice. To make that sure that38. everyone made the right choice ,they agreed to give their final answer39. after a two-year old trial period. Faster service ,better airport40. facilities; the benefits to the customers are clear. They will also grow upin the near future ,allowing customers to choose from so many services.PART FIVEsection BQuestions 41-45. A student has translated a piece of news in a Chinese newspaper back into English and asked you to check it.. In each line there is one wrong word.. For each numbered line (41-45) write the correct word in the space on your Answer Sheet. Example:They have selled their products in 20 countries. ... ...sold ... ..British farmers are troubled by straw. They produce more than41. ten millions tons every year as a byproduct of farming and42. their animals need only four million tons for bedding and fooding.43. Since European air-pollution laws forbid people to burnt straw,44. the extra straw is plowed under or leave to rot. Scientists have45. now found a way to put the straw to good using by changing aneat-loving bacterium in the straw.二.WRITINGPART ONEQuestion 46You are going to spend holidays in Hawaii in June. Suddenly you received a letter from an important customer ,Mr. Elton Deland ,who will arrive on 25th June and discuss the claim. You have to delay the trip till July.Write a short message to Ms. Anne Folster, your secretary.. Explain Why you postpone your trip.. Mention the date when Mr Elton Deland will arrive.. Ask her to arrange your meeting.. Write 30-40words on your Answer Sheet.PART TWOQuestion 47You work for General ,a company which produces cars. You` are in charge of Product Development. Reed the following chart which shows the results of a survey between your company and Quaker, your main competitor. The chart does not tell the exact numbers but the exact ratings. A refers to Gener41 company ,while B refers to Quaker company.. Use the information in the chart to write a short report (about 100- 120 words) analyzing the reason why Quaker over benefits recently to increase your company's competitiveness.. Write on your Answer Sheet.A : General companyB :Quaker company附图见bec2-3图三.LISTENINGPART ONEQuestions 1-12.. You will hear three telephone conversations.. Write down one word or number in the numbered spaces on the forms below.Message One. Questions 1-4Telephone MessageTo : Mr(1) . . . . From: MaryDate : 21st May Time: 10 : 001. Mr. Martin will arrive in Tokyo around2:30 Tokyo time on .(2). . . . . . afternoonby Flight Pan-Am (3). . . . . .2. Mr. Martin , has moustache , tall ,dark , ( 4 ) . . . . . . hair , wears glasses, sweaters.Message Two. Questions 5- 8Message.To: Henry Stewart. . . . . From: CathyDate : 23rd March Time : 10 : 201. When you were out of town Bruce (5). . . . . called.He was from Quick (6). . . . . . Supply Company.2. He wanted to place (7). . . . . . orders with us.You can ring him on (8). . . . . . except Wednesday morning.Message Three. Question 9- 12Dinner BookingWednesdayDate : 29th Oct. Time : 11:20Name of the Customer: John Lee from National (9). . . . . . Import 6 Export Corporation .No. of the Customers : (10) . . . . . .Time for Dinner : around (11). . . . . . tomorrow evening .Miscellanea : Like to eat at an (12). . . . . . roomPART TWOQuestions 13-22Section OneQuestions 13-17. You will hear five short pieces.. For each piece decide what the speaker is going to do next.. Write one letter (A-H) next to the number of the piece. You will hear the five pieces twice.13. . . . . . . . . .14. . . . . . . . . .l5. . . . . . . . . .16. . . . . . . . . .17. . . . . . . . . .Next ActionsA to send a telexB to check a carC to run a storeD to scan the adsE to drive a carF to read a magazineG to take a vocationH to buy clothesSection TwoQuestions 18-22. You wi71 hear another five short pieces.. For each piece decide what the speaker is talking about. . Write one letter (AH) next to the number of the piece. . You will hear the five pieces twice.18. . . . . . . . .19. . . . . . . . .20. . . . . . . . .21 .. . . . . . . .22. . . . . . . . .ObjectsA clothB vitaminsC medicineD pictureE dressF medicineG silkH voicePART THREEQuestions 23-30 ..You will hear a talk presented by a reporter. This talk is about various kinds of problems occurring during the east-west cooperation upon vehicles and machinery on the third market.. You have to complete the sentences (23- 30) by choosing the correct answer.. Mark one letter (A ,B or C).23. ECE refers toA European Committee of Economics.B European Commity of Economics.C Economic Committee of Europe.24. If you want to open the car market in different third-market areas ,you will meetA very different problems.B almost the same problems.C the similar problems.25. If a new machine is going to be delivered on the third-market ,modifications have to be madeA in packaging features.B to minor extent.C to great extent.26. Can meet the changed specifications in time. -A Quick ordering .B Effective managementC Long lead-time27. If you want to compete with other rivals on the third-market, you mustA have close relations with the suppliers.B have close contact with the market.C keep close attention to your products.28. The chemical products under east-west cooperation mustA adjust themselves quickly to the market.B be invented quickly to the manufacturers.C keep steady amount to the clients.29. In the turnkey plant area, has little experience.A eastern enterpriseB western enterpriseC local supplier30. has to be assessed in the third market place.A Package certificateB Package priceC Package colourBEC二级模拟试题3参考答案一. 阅读部分PART ONE1. A2. C3. B4. E5. D6. B7. DPART TWO8. D 9. F 10. H 11. A 12. EPART THREE13. C 14. B 15. A 16. F 17. G 18. A 19. F 20. BPART FOUR21. B 22. B 23.A 24. D 25. C 26.B 27.A 28. C 29.C30. C 31. B 32.A 33. A 34. B 35.DPART FIVESection A36. every是多余,应删掉.37. that是多余,应删掉.38. 没有多余的词.39. 没有多余的词.40. up是多余,应删掉.Section B41. millions应改为million42. fooding应改为food43. burnt应改为burn44. leaving应改为left45. using 应改为use二.写作部分PART ONEQuestion 46(Sample for reference)To : Ms. Anne Folster, I have to delay my trip to Hawaii till July ,as Mr. Flton Deland will arrive in London on 25th June and discuss the claim face to face. Please arrange our meeting on 26th June.PART TWOQuestion 47(Sample for reference )After careful survey, we can see clearly from the chart that our cars have more models and colours than those of Quaker Company, our main competitor with higher quality. However, Quaker Company's income increases more quickly. What is the reason? First , Quaker Company spends much more money in advertising. I suggest we advertise on BTV, the most popular broadcasting station nowadays. Secondly , we should enlarge the scope of our after-sales service. We can open more service stations in many medium-sized cities. Thirdly ,if we have more money, We can hire more salesmen to sell cars directly to the customes, especially, more salesmen in medium-sized cities.三. 听力部分1. Davis2. Monday3. HI 834. curly5. Hanover6. Office7. more 8. 081487001 9. Textiles10. 4 11. 6:30 12. isolated13. D 14. H 15. A16. E 17. B 18. G19. C 20. E 21. C22. F 23. C 24. A25. C 26. B 27. B28. A 29. B 30. CTape scriptPart One. Questions 1 to 12.Message One. Questions 1 to 4.F1 : Hello. Could I speak to Mr. Davis's secretary please?F2 : Yes ,it's Mr Davis's secretary speaking. What can I do for youo.F1 : Oh hello , I'm Lucy, Mr. Martin's secretary. I want to check that you know Mr.Martin changed the flight and will arrive in Tokyo around 2 i 30 Tokyo time on Monday afternoon.F2 : I already know about it. Is it Pan-Am H1837F1 : Yes.F2 : Mr. Davis himself is going to meet Mr. Martin at the Airport himself. Could you tell me what he looks like?F1 : Well ,Mr. Martin has a moustache with dark ,curly hair.F2 : Does he wear glasses?F1 : Oh ,yes ,he does. And Mr. Martin is also tall. I remember he wears sweaters when he was aboard.F2: Thank you for your help.F1 : You 're welcome.Message Two. Questions 5 to 8.F1 : Hello. Mount Wood Company.M1 : May I speak to Mr. Harry Stewart, please?F1 : I'm sorry ,but Mr. Stewart is out of town until next Monday. De you want to leave a message? M1 : Oh, yes. I'm Bruce Hanover. I represent the Quick Office Supply Company.F1 : Is it B-R-U-C-E ,H-A-N-O-V-E-R?M1 : That's right. Last week your company purchased feeder paper for your word processors from us. Mr. Stewart seemed very satisfied. So I would like to see Mr.Stewart and try to convince him to place more orders with us. As we sell all kinds of stationary supplies at low prices and with prompt delivery.F1 : OK. I'll let Mr. Stewart know your calling when he come back.M1 : Thank you. And my contact number is 081487001. So Mr. Stewart may call me if he finds it convenient.F1 : 081487001M1 : That's right. By the way, I will not be in on Wednesday morning.F1 : I'll tell Mr. Stewart. Bye-bye.M1 : Thank you very much.Message Three. Questions 9 to 12.F1 : Hello, Edmund Hotel.M1 : Hello ,1'm John Lee of National Textiles Import and Export Corporation.F1 : What can I do for you?M1 : Well ,l would like to invite a customer of mine to a banquet tomorrow evening.F1 : How many people will there be?M1 : Four, two from our corporation and two Europeans.F1 : When do you want to start your banquet?M1 : Around 6:30.F1 : Do you have any special requirments?M1 : Yes, we do not want to be disturbed during dinner.F1 : OK. I'll arrange a quiet room for you.M1 : Thank you very much.F1 : You're welcome.Section Two. Questions 13 to 22.Section Two. Questions 13 to 17.Question ThirteenYou see, we have to buy the food anyway, so why not find a more economical way to do it? I will read the newspaper to see if anything is on sale that we need. Since we have a fridge, we can buy some items and freeze them for later use.Question FourteenI'm going to stay in New York for next week. During my stay, I'll be attending a few parties and social gatherings. Of course, I can't wear the same thing all the time. I need two new suits and garments for the evening.Question FifteenI have made a reservation for a flight to New York for next week. And I have to pass on the details of this flight to my American friend so that he can book a room for me during my business visit. So could you tell me what time it is in New York?Question SixteenLook at the rear-view mirror and the side-view mirror to make sure that no one is coming. You may turn your head to look back, too. Now the gauge on the dashboard says the engine is war, so you can put it into drive.Question SeventeenWinter will be here in no time, so we have to know that your radiator fluid can withstand freezing point. This gauge will tell us how low the temperature can go before your car's radiator fluid freezes.Section Two. Questions 18 to 22.Question EighteenIt's amazing to think that the thin thread from cocoons can be woven into such beautiful cloth.This kind of cloth is light and comfortable to wear. So it's often used to make pajamas, shirts, etc. We call it "the Cloth of Kings."Question NineteenI think I can pick up some of these items on this Prescription List without your help. Let me see ,two bottles of aspirin ,a roll of adhesive tape ,and a box of Contac.Question TwentyBlack might look too serious for young people of your age. Why don't you try this violet colour in large. You can use the dressing room over there to try it on, if you like. This style suits you. Question Twenty-one .Vitamin C is certainly one of the most important substances our bodies need. But it's not the only one we need. If you really need to supplement your regular diet ,I suggest you try one of these multivitamins.Question Twenty-twoOnly man has the power of speech, and all men have it. The power of speech is one of the most important possessions of the human race. It makes possible the exchange of ideas between men possible as well as the transmission of ideas from father to son.Part Three. Questions 23 to 30.Interviews conducted by members of the ECE, (Economic Committee of Europe) with enterprises engaged in third-market cooperation have identified several areas in which problems occurred. Many of these problems are characteristic of the particular industrial sector in which the cooperation takes place and cannot be generalized to supply to other sectors.When vehicles and machinery made under cooperation arrangements are launched on new markets, substantial modifications may have to be made in basic features. Such changesmay be dictated by a lack of servicing facilities for the prescribed frequency of service for the standard model and an operating environment that is different form that prevailing in either of the partner's home markets. Since acceptance of the product in question by the client depends upon the manufacturer successfully satisfying his specifications, the partners must closely coordinatetheir ordering procedures in such a way that these changed specifications are communicated in time to the manufacturing plants. If the producing enterprise has a long lead time as a result of internal planning procedures, it may find it difficult to make the necessary changes in the standard model during the time available, to the detriment of its relations with clients in the third market. Clearly, this is an area in which effective managerial techniques can prevent such problems from arising.Rapid fluctuations in demand are characteristic of the market for many of the chemical products manufactured under east-west cooperation arrangement. In order to respond to such shifts in demand, the supplying enterprise must remain in close touch with the market, either directly or through its western partner, in order to adjust its production schedules to take these shifts into account. Otherwise it may find itself with large inventories of unsaleable products while its partner may be in the difficult position of hastening to find4nalternativemarket for the amounts no longer required by the target market.In the turnkey-plant sector, partner enterpriese often discover that they derive totally different results from using the same local subcontractors. According to several western plant contractors interviewed, while the eastern partner obtained complete satisfaction from local suppliers, the western partner found little cooperation, forthcoming long delivery delays, and other shortcomings. This difference usually arises in the case of developing countries in which the western firm has no experience and the eastern enterprise may have been active for many years. Obviously in such cases it is recommended that the western firm rely on its partner's established links with local suppliers instead of attempting to deal with them on its own.Consumer goods make under cooperation arrangements and supplied to third markets often pass through a period of poor buyer acceptance, which is due to inappropriate or insufficient packaging. Since many branded consumer goods are distinguished from one another at the point of sale mainly by their packages ,the key to the successful introduction of a new product in a third market is correct assessement of consumer preferences. This assessment can best be carried out in the market-place by using up-to-date techniques for measuring buyer response to package shape, colour and presentation. Which partner should be responsible for conducting such testing, and。
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模拟测试题（1）1.一座大楼内的一个计算机网络系统，属于（ B ）。
A. PANB. LANC. MAND. WAN2.计算机网络中可以共享的资源包括（ A ）。
A. 硬件、软件、数据、通信信道B. 主机、外设、软件、通信信道C. 硬件、程序、数据、通信信道D. 主机、程序、数据、通信信道3.计算机网络是计算机技术和通信技术相结合的产物，这种结合开始于（A ）。
A. 20世纪50年代B. 20世纪60年代初期C. 20世纪60年代中期D. 20世纪70年代4.世界上第一个计算机网络是（ A ）。
A. ARPANETB. ChinaNetC. InternetD. CERNET5.星形. 总线形. 环形和网状形是按照（ B ）分类。
A.网络跨度B. 网络拓扑C. 管理性质D. 网络功能6.计算机互联的主要目的是（ D ）。
A. 确定网络协议B. 将计算机技术与通信技术相结合C. 集中计算D. 资源共享7.计算机网络建立的主要目的是实现计算机资源的共享。
计算机资源主要指计算机（ C ）。
A. 软件与数据库B. 服务器、工作站与软件C. 硬件、软件与数据D. 通信子网与资源子网8.以下的网络分类方法中，哪一组分类方法有误（ B ）。
A. 局域网/广域网B. 对等网/城域网C. 环型网/星型网D. 有线网/无线网9.局部地区通信网络简称局域网，英文缩写为（ B ）。
A. WANB. LANC. SAND. MAN10.在OSI模型中，NIC（网络接口卡）属于（ B ）。
A. 物理层B. 数据链路层C. 网络层D. 运输层11.在OSI模型中，为网络用户间的通信提供专用程序的层次是（ D ）。
A. 运输层B. 会话层C. 表示层D. 应用层12.在OSI模型中，为实现有效、可靠的数据传输，必须对传输操作进行严格的控制和管理，完成这项工作的层次是（ B ）。
A. 物理层B. 数据链路层C. 网络层D. 运输层13.在OSI模型中，物理层存在四个特性。
其中，通信媒体的参数和特性方面的内容属于（A ）。
A.机械特性B. 电气特性C. 功能特性D. 规程特性14.在OSI七层结构模型中，处于数据链路层与运输层之间的是（ B ）。
A. 物理层B. 网络层C. 会话层D. 表示层15.完成路径选择功能层次是在OSI模型的（ C ）。
Ａ. 物理层 B. 数据链路层 C. 网络层 D. 运输层16.TCP/IP协议簇的层次中，解决计算机之间通信问题是在（ B ）。
A. 网络接口层B. 网络层C. 传输层D. 应用层17.网络协议主要要素为（C ）。
A. 数据格式、编码、信号电平B. 数据格式、控制信息、速度匹配C. 语法、语义、同步D. 编码、控制信息、同步18.Internet的网络层含有四个重要的协议，分别为（ C ）。
A. IP，ICMP，ARP，UDPB. TCP，ICMP，UDP，ARPC. IP，ICMP，ARP，RARPD. UDP，IP，ICMP，RARP19.TCP/IP体系结构中的TCP和IP所提供的服务分别为（ D ）。
A. 链路层服务和网络层服务B. 网络层服务和运输层服务C. 运输层服务和应用层服务D. 运输层服务和网络层服务20.计算机网络中，分层和协议的集合称为计算机网络的（C ），目前在Internet中使用最广泛的是（G ）协议。
A. 组成结构；B参考模型； C. 体系结构； D. 基本功能。
E. SNA；F．MAP/TOP；G. TCP/IP；H．X.25；I. ISO／OSI；21.在TCP/IP协议簇中，UDP协议工作在（ B ）。
A. 应用层B. 传输层C. 网络互联层D. 网络接口层22.相邻层间交换的数据单元称之为服务数据单元，其英文缩写为（ A ）。
A. SDUB. IDUC. PDU D . ICI23.对等层间交换的数据单元称之为协议数据单元，其英文缩写为（ C ）。
A. SDUB. IDUC. PDU D . ICI24.当一台计算机从FTP服务器下载文件时，在该FTP服务器上对数据进行封装的五个转换步骤依次是：（ B ）。
A. 比特，数据帧，数据包，数据段，数据B. 数据，数据段，数据包，数据帧，比特C. 数据包，数据段，数据，比特，数据帧D. 数据段，数据包，数据帧，比特，数据25.ISO提出OSI模型是为了（ B ）。
A. 建立一个设计任何网络结构都必须遵循的绝对标准B. 克服多厂商网络固有的通信问题C. 证明没有分层的网络结构是不可行的D. 上列叙述都不是26.TCP/IP参考模型中的网络接口层对应于OSI中的（D ）。
A. 网络层B. 物理层C. 数据链路层D. 物理层与数据链路层27.在TCP/IP参考模型中，传输层的主要作用是在互联网络的源主机与目的主机对等实体之间建立用于会话的（ C ）。
A. 点到点的连接B. 操作连接C. 端到端的连接D. 控制连接28.在因特网中，IP数据报从源结点到目的结点可能需要经过多个网络和路由器。
在整个传输过程中，IP数据报报头中的（A ）。
A. 源地址和目的地址都不会发生变化B. 源地址有可能发生变化而目的地址不会发生变化C. 源地址不会发生变化而目的地址有可能发生变化D. 源地址和目的地址都有可能发生变化29.在因特网中，IP数据报的传输需要经由源主机和中途路由器到达目的主机，通常（ D ）。
A. 源主机和中途路由器都知道IP数据报到达目的主机需要经过的完整路径B. 源主机知道IP数据报到达目的主机需要经过的完整路径，而中途路由器不知道C. 源主机不知道IP数据报到达目的主机需要经过的完整路径，而中途路由器知道D. 源主机和中途路由器都不知道IP数据报到达目的主机需要经过的完整路径30.下列哪一项描述了网络体系结构中的分层概念（ D ）。
A. 保持网络灵活且易于修改B. 所有的网络体系结构都用相同的层次名称和功能C. 把相关的网络功能组合在一层中D. A）和C）31.下面可用于流量控制的是（ A ）。
A. 滑动窗口B. SNMPC. UDPD. RARP32.网络接口卡的基本功能包括：数据转换. 通信服务和（ B ）。
A. 数据传输B. 数据缓存C. 数据服务D. 数据共享33.在中继系统中，中继器工作在（ A ）。
A. 物理层B. 数据链路层C. 网络层D. 运输层以上的高层34.下面对集线器的缺点描述正确的是（ B ）。
A. 集线器不能延伸网络可操作的距离B. 集线器不能过滤网络流量C. 集线器不能在网络上发送变弱的信号D. 集线器不能放大变弱的信号35.在同一个信道上的同一时刻，能够进行双向数据传送的通信方式是（ C ）。
A. 单工B. 半双工C. 全双工D. 上述三种均不是36.能从数据信号波形中提取同步信号的典型编码是（ D ）。
A. 归零码B. 不归零码C. 定比码D. 曼彻斯特编码37.计算机网络通信采用同步和异步两种方式，但传送效率最高的是（ A ）。
A．同步方式B．异步方式C．同步与异步方式传送效率相同 D. 无法比较38.有关光缆陈述正确的是（ A ）。
A. 光缆的光纤通常是偶数，一进一出B. 光缆不安全C. 光缆传输慢D. 光缆较电缆传输距离近39.通过改变载波信号的相位值来表示数字信号1. 0的方法叫做（ C ）。
A. ASKB. FSKC. PSKD. ATM40.同轴电缆与双绞线相比，同轴电缆的抗干扰能力（ C ）。
A. 弱B. 一样C. 强D. 不能确定41.ATM采用的线路复用方式为（ C ）。
A. 频分多路复用B. 同步时分多路复用C. 异步时分多路复用D. 独占信道42.数据传输速率是描述数据传输系统的重要指标之一。
数据传输速率在数值上等于每秒钟传输构成数据代码的二进制（ A ）。
A. 比特数B. 字符数C. 帧数D. 分组数43.将一条物理信道按时间分成若干时间片轮换地给多个信号使用，每一时间片由复用的一个信号占用，这样可以在一条物理信道上传输多个数字信号，这就是（ B ）。
A. 频分多路复用B. 时分多路复用C．码分多路复用D．频分与时分混合多路复用44.下面叙述正确的是（ A ）。
A．数字信号是电压脉冲序列B．数字信号不能在有线介质上传输C．数字信号可以方便地通过卫星传输D．数字信号是表示数字的信号45.通信系统必须具备的三个基本要素是（ C ）。
A. 终端电缆、计算机B. 信号发生器、通信线路、信号接收设备C. 信源、通信媒体、信宿D. 终端、通信设施、接收设备46.各种网络在物理层互连时要求（ A ）。
A. 数据传输速率和链路协议都相同B. 数据传输速率相同，链路协议可不同C. 数据传输速率可不同，链路协议相同D. 数据传输速率和链路协议都可不同47.UTP与计算机连接，最常用的接口连接器为（ A ）。
A. RJ-45B. AUIC. BNC-TD. NNI48.同轴电缆与双绞线相比，同轴电缆的抗干扰能力（ C ）。
A. 弱B. 一样C. 强D. 不能确定49.用一条双绞线可以把两台计算机直接相连构成一个网络，这条双绞线必须是（ B ）。
A. 直连线B. 交叉线C. 反接线D. 以上都可以50.基带系统是使用（ C ）进行数据传输的。
A. 模拟信号B. 多信道模拟信号C. 数字信号D. 宽带信号模拟测试题（2）51.基带系统是使用（ C ）进行数据传输的。
A. 模拟信号B. 多信道模拟信号C. 数字信号D. 宽带信号52.中继器这种网络互联设备处于OSI七层模型的（ A ）。
A. 物理层B. 数据链路层C.网络层D. 传输层以上的高层53.在PC机使用传统电话线拨号上网时，要使用调制解调器，其中调制的过程是（ A ）。
A. 将数字信号转换为模拟信号B. 将模拟信号转换为数字信号C. 将一种模拟信号转为另一种摸拟信号D. 将一种数字信号转换为另一种数字信号54.不受电磁干扰或噪声影响的传输媒体是（ C ）。
A. 双绞线B. 同轴电缆C. 光纤D. 微波55.将物理信道的总频带分割成若干个子信道，每个子信道传输一路信号，这种多路复用方式被称为（ D ）。
A. 同步时分多路复用B. 码分多路复用C. 异步时分多路复用D. 频分多路复用56.用载波信号相位来表示数字数据的调制方法称为（ A ）键控法。
A. 相移（或移相）B. 幅移（或移幅）C. 频移（或移频）D. 混合57.采用全双工通信方式，数据传输的方向性结构为（ A ）。
A. 可以在两个方向上同时传输B. 只能在一个方向上传输C. 可以在两个方向上传输，但不能同时进行D. 以上均不对58.RS-232C的电气特性规定逻辑“1”的电平范围分别为（B）。
A. +5V至+15VB. -5V至-15VC. 0V至+5VD. 0V至-5V59.由于帧中继可以使用链路层来实现复用和转接，所以帧中继网中间节点中只有（ A ）。