2022年考博英语-宁夏大学考前模拟强化练习题31（附答案详解）

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1、2022年考博英语-宁夏大学考前模拟强化练习题（附答案详解）1. 单选题The car, at least as we know it, is on the way out, because its exhaust（ ） a threat to the environment.问题1选项A.originatesB.posesC.offendsD.paralyzes【答案】B【解析】考查动词辨析。A选项originates“引起，创作”；B选项poses“造成，形成”；C选项offends“冒犯，使不愉快”；D选项paralyzes“使麻痹，使瘫痪”。句意：这辆车，至少就我们所知，正在被淘汰，因

2、为它的尾气对环境（ ）了威胁。本句表示“造成了威胁”，因此B选项符合题意。2. 单选题（ ）the calculation is right, scientists can never be sure that they have included all variables and modeled them accurately.问题1选项A.Even ifB.As far asC.If onlyD.So long as【答案】A【解析】考查连词短语辨析。A选项even if“即使；虽然”，B选项as far as“至于；直到”，C选项if only“要是就好了”，D选项so long as

3、“只要”；然后看到原句：（ ）计算结果正确，科学家也无法肯定他们已经把所有的变量都包括进去并进行了准确的模拟。可以看出两个句子之间有转折让步的含义，因此A选项符合题意。3. 翻译题American psychologists hold that there are several components to having high “emotional intelligence.” First is self-awareness, because you can only be in control of your life and your relationships if you know

4、 yourself. Second is being able to properly manage your emotions, so you can control your feelings rather than letting them control you. Third is being self-motivated, and being able to get through tough times and start over. The fourth is being receptive to other peoples emotions, which is crucial

5、for effective communication and healthy relationships. The fifth is being able to manage you relationships, which includes leadership and professional management skills.【答案】美国心理学家认为，情商包括以下几个方面的内容：一是认识自己的情绪，只有认识自己，才能成为自己生活的主宰。二是能妥善管理自己的情绪，即能调控自己。三是自我激励，它能够使人走出生命中的低潮，重新出发。四是认识他人的情绪，这是与他人正常交流顺利沟通的基础。五是

6、人际关系的管理，即领导和管理能力。4. 单选题My eyes had become（ ）to the now semi-darkness, so I could pick out shapes about seventy-five yards away.问题1选项A.inclinedB.accustomedC.vulnerableD.sensitive【答案】B【解析】考查形容词辨析。A选项inclined“有倾向”；B选项accustomed“习惯的，通常的”；C选项vulnerable“脆弱的，易碎的”；D选项sensitive“敏感的”。句意：我的眼睛已经_现在的半明半暗，所以我能辨认出

7、75码外的形状。考查固定搭配be accustomed to“习惯于”，这里表示的是习惯于这种半明半暗的状况，因此B选项符合题意。5. 翻译题面对多变的经济形势，我们主张要大力推动开放创新。国际金融危机爆发7年来的实践证明，唯有同舟共济，才能渡过难关。在相互依存的世界里，各国有权根据自己的国情制定经济政策，但是也应加强同其他国家的宏观政策协调，扩大利益汇合点，实现共同发展。欧洲有谚语讲：“面对变革之风，有人砌围墙，有人转风车。”我们倡导顺势而为，坚定不移推进自由贸易，旗帜鲜明反对保护主义，积极扩大区域经济合作，打造全球价值链，迎接新科技革命的到来。宏观政策固然重要，但结构性改革势在必行，这是国

8、际社会的共识。尽管难度很大，但也应该坚持去做，这样才能形成全球创新合力，增强世界发展的新动能。【答案】In a world facing volatile economic situation, we should all work to promote opening-up and innovation. What has happened since the outbreak of the international financial crisis seven year sago proves that to work in unity is the surest way for cou

9、ntries to get over the difficulties. We are all interdependent in this world. While we each have the right to adopt economic policies in line with national conditions, we need to strengthen macro-policy coordination to expand the convergence of interests and achieve common development. An European p

10、roverb says, “when the wind of change blows, some build walls, while others build windmills.” We need to act along the trend of our time, firmly advance free trade, resolutely reject protectionism, and actively expand regional economic cooperation. We need to build global value chains, and seize the

11、 opportunity of a new technological revolution. While the international community agree on the importance of macro-policies to the economy, they also recognize the urgency to go ahead with structural reform.Structural reform must be carried through no matter how difficult it is, as it is an effectiv

12、e way to foster conditions conducive to global innovation and bring about new momentum for global development.6. 单选题Ann used to（ ）when we went to the same school. But now she is always on time.问题1选项A.being lateB.lateC.be lateD.getting late【答案】C【解析】考查非谓语。结合题干和选项可知本题考查非谓语，而used to后面要加动词原形表示“过去常常做某事”，因

13、此A、B、D不符合语法规则。句意：我们在同一所学校时，安总是迟到。但是现在她总是很准时。7. 单选题Couples blessed with strength and aggression（ ）looks are better off having boys, as these characteristics are of more use to males.问题1选项A.other thanB.rather thanC.rather tooD.in spite of【答案】B【解析】考查词组辨析。A选项other than“除了，不同于”；B选项rather than“而不是”；C选项rat

14、her too“稍微一点”；D选项in spite of“尽管”。句意：与长相相比，体力强、有进取心的夫妇更容易生男孩，与长相相比，因为这些特征对男性更有用。这里表达的意思是“体力和进取心才是决定孩子性别的重点，而不是长相”，因此B选项符合题意。8. 单选题The military operation（ ）yesterday were targeted at the military installations.问题1选项A.propelledB.commencedC.plaguedD.modulated【答案】B【解析】考查动词辨析。A选项propelled“推动，驱使”；B选项commen

15、ced“开始”；C选项plagued“困扰，折磨”；D选项modulated“调接，调动”。句意：昨天_的军事行动是针对军事设施的。这里表达的意思是“昨天开始执行的军事行动”，因此B选项符合题意。9. 单选题Like many other aspects of the computer age, Yahoo began as an idea,（1）into a hobby and lately has（2）into a full-time passion. The two developers of Yahoo, David Filo and Jerry Yang, PhD candidate

16、s（3）Electrical Engineering at Stanford University, started their guide in April 1994 as a way to keep（4）of their personal interest on the Internet. Before long they（5）that their home brewed lists were becoming too long and（6）. Gradually they began to spend more and more time on Yahoo.During 1994, th

17、ey（7）yahoo into a customized database designed to（8）the needs of the thousands of users（9）began to use the service through the closely（10）Internet community. They developed customized software to help them（11）locate identify and edit material（12）on the Internet. The name Yahoo is（13）to stand for “Ye

18、t another Hierarchical Officious Orale”, but Filo and Yang insist they selected the（14）because they considered themselves yahoos. Yahoo itself first（15）on Yangs workstation, “akebono”, while the search engine was（16）on Filos computer “Konishiki.”In early 1995 Marc Andersen, co-founder of Netscape Co

19、mmunication in Mountain View, California, invited Filo and Yang to move their files（17）to larger computers（18）at Netscape. As a result Stanfords computer network returned to（19）, and both parties benefited. Today, Yahoo （20）organized information on tens of thousands of computers linked to the web.问题

20、1选项A.becameB.grewC.turnD.intend问题2选项A.madeB.sawC.lookedD.turned问题3选项A.inB.onC.aboutD.for问题4选项A.touchB.contactC.trackD.record问题5选项A.foundedB.foundC.arguedD.reported问题6选项A.unwieldyB.toughC.tamableD.invaluable问题7选项A.exchangedB.shankC.soldD.converted问题8选项A.explainB.serveC.discoverD.evaluate问题9选项A.whichB

21、.thatC.actuallyD.eagerly问题10选项A.relativeB.interactiveC.boundD.contacted问题11选项A.fluentlyB.efficientlyC.exactlyD.actually问题12选项A.transmittedB.purchasedC.soldD.stored问题13选项A.aboutB.boundC.goingD.supposed问题14选项A.fableB.modeC.nameD.brand问题15选项A.supportedB.residedC.livedD.linked问题16选项A.connectedB.lodgedC.

22、introducedD.linked问题17选项A.overB.awayC.insideD.beneath问题18选项A.housedB.caughtC.hosedD.hidden问题19选项A.averageB.normalC.ordinaryD.equal问题20选项A.attainsB.detainsC.maintainsD.contains【答案】第1题:B第2题:D第3题:A第4题:C第5题:B第6题:A第7题:D第8题:B第9题:B第10题:C第11题:B第12题:D第13题:D第14题:C第15题:B第16题:B第17题:A第18题:A第19题:B第20题:A【解析】1.考查动词

23、词组辨析。A选项“变成，成为”；B选项“发展为”；C选项“转变成”，D选项“想要，意指”，句意：就像计算机时代的许多其他方面一样，雅虎一开始只是一个想法，后来_了一种爱好。A选项是一个中性词，用于意义好、坏两方面的变化都可以；B选项更侧重强调结果；C选项时态不对；D选项词组含义不适合语境，因此B选项符合题意。2.考查动词词组辨析。A选项“把制成”；B选项“调查，观察的性质”；C选项“调查，观察”；D选项“变成，转变成”，句意：与计算机时代的许多其他方面一样，雅虎一开始只是一个想法，后来变成了一种爱好，最近又（ ）一种全职的热情。本句表示的是“变成了一种全职的热情”，因此D选项符合题意。3.考查

24、固定搭配。A选项“在内”；B选项“在之上”；C选项“关于”；D选项“为了”，句意：雅虎的两名开发人员大卫费罗和杨致远是（ ）斯坦福大学电子工程专业的博士生。而表示某个修某个具体专业的人，要用in Electrical Engineering表示，因此A选项符合题意。4.考查固定搭配。A选项“保持联系”；B选项“保持联系”；C选项“记录，与保持联系”；D选项“保持的记录”，句意：1994年4月开始他们的指南，作为一种在互联网上（ ）个人兴趣的方式。本句表示“记录个人的兴趣爱好”，因此C选项符合题意。5.考查动词辨析。A选项“建立”；B选项“发现”；C选项“争论，争辩”，D选项“报道”，句意：不久

25、之后，他们（ ）自己自制的清单变得太长，太不实用了。本句表示“发现自己的清单太长”，因此B选项符合题意。6.考查形容词辨析。A选项“笨拙的，笨重的”；B选项“艰难的，粗糙的”；C选项“可驯服的”；D选项“无价的，非常贵重的”，句意：不久之后，他们发现自己自制的清单变得太长，太（ ）了。本句想要表达的是“清单太长太笨重”，因此A选项符合题意。7.考查动词辨析。A选项“交换”；B选项“（花等）从病梗上枯萎脱落”；C选项“卖”；D选项“转变，改变”，句意：在1994年，他们把雅虎（ ）一个定制的数据库。本句表示“把雅虎变成一个”，因此D选项符合题意。8.考查动词辨析。A选项“解释”；B选项“为服务，

26、招待”；C选项“发现，发觉”；D选项“评价，估价”，句意：在1994年，他们把yahoo转换成一个定制的数据库，以（ ）成千上万用户的需求。而serve the need是固定搭配，表示“满足某人的需求”，因此B选项符合题意。9.考查定语从句。A选项“哪个是（引导非限制性定语从句）”；B选项“那个”；C选项“实际上”；D选项“热情地”，句意为：用户（ ）开始通过紧密联系的互联网社区使用这项服务。这里考查的是定语从句，A选项不能用于主语为人的定语从句，排除；C和D不是定语从句的关联词，排除；当先行词为人时，可以用that作关系代词，因此B选项符合题意。10.考查名词辨析。A选项“亲戚，相关物”；

27、B选项“交互，交互式的”；C选项“跳跃，限制”；D选项“交往，接触”，句意：通过紧密（ ）的互联网社区开始使用这项服务的用户。closely bound意为“紧密相连”，因此C选项符合题意。11.考查副词辨析。A选项“流利地”；B选项“有效地，效率高地”；C选项“恰好地，正好”；D选项“实际上，事实上”，句意：他们开发了定制软件，帮助他们（ ）定位、识别和编辑存储在互联网上的材料。本句想表达的含义应该是“高效的定位”，因此B选项符合题意。12.考查动词辨析。A选项“传输，传送”；B选项“购买”；C选项“卖”；D选项“储存，储藏”，句意：他们开发了定制软件，帮助他们有效地定位、识别和编辑（ ）在

28、互联网上的材料。根据句意应该是“储存在互联网上的资料”，因此D选项符合题意。13.考查固定搭配。A选项“关于”；B选项“界限，边界”；C选项“离开，离去”；D选项“认定，据说”，句意：Yahoo这个名字（ ）来代表“又一个层级官话”。be supposed to“应该”，根据句意可知，要表达的含义是“这个名字应该是代表”，因此D选项符合题意。14.考查名词辨析。A选项“寓言，无稽之谈”；B选项“模式，方式”；C选项“名字，姓名”；D选项“品牌”，句意：但是Filo和Yang坚持说他们挑选了这个（ ）因为他们认为自己就是Yahoo。根据上文可知Yahoo是他们网站的名字，因此C选项符合题意。15

29、.考查动词辨析。A选项“支持”；B选项“居住，存在”；C选项“活着，居住”；D选项“相关联”，句意：雅虎首先（ ）的是杨的工作站。reside on“驻留于”，是原文要表达的含义，因此B选项符合题意。16.考查动词辨析。A选项“链接”；B选项“存放，保管”；C选项“介绍”；D选项“相关联”，句意：而搜索引擎（ ）在Filo的电脑里。这里是用了拟人的手法，表示搜索引擎暂时是在Filo的电脑里借住（运行），因此B选项符合题意。17.考查动词词组辨析。A选项“搬到”，此处over表示经过一段距离”；B选项“搬离”；C选项“搬进”，后面不用再加介词to；D选项“搬到下面”，句意：邀请Filo和Yang

30、讲他们的文件（ ）更大的空间去。这里的“搬”是有距离的，并且是搬到某个地方，因此A选项符合题意。18.考查动词辨析。A选项“给房子住”；B选项“抓”；C选项“用水管淋浇”；D选项“藏”，句意：邀请Filo和Yang将他们的文件转移（ ）到网景公司更大的电脑上。这里也是用了拟人的手法，给这些文件住的地方（储存它们），因此A选项符合题意。19.考查形容词辨析。A选项“平均的”；B选项“正常的，正规的”；C选项“普通的”；D选项“平等的”，句意：之后，斯坦福的电脑（ ）。return to normal“恢复正常”，因此B选项符合题意。20.考查动词辨析。A选项“获得”；B选项“留住，扣押”；C选项

31、“留住，阻止”；D选项“包含”，句意：Yahoo从互联网上的上万台计算机中（ ）信息。根据原文的信息，我们知道Yahoo是获取信息，而不是储存或是留住，因此A选项符合题意。10. 单选题Parents often faced the（ ）between doing what they felt was good for the development, of the child and what they could stand by way of undisciplined noise and destructiveness.问题1选项A.junctionB.paradoxC.premise

32、D.dilemma【答案】D【解析】考查名词辨析。A选项junction“连接，接合，枢纽”；B选项paradox“自相矛盾的说法”；C选项premise“前提”；D选项dilemma“进退两难的局面”。句意：父母总是_的选择：到底是该做他们自己认为对孩子发展有益的事，还是该容忍孩子任性的吵闹和破坏。这里表达的意思是父母面临两难的抉择，因此D选项符合题意。11. 单选题I was supposed to go to a concert with your sister the other night, but your sister didnt turn up. I cant believe

33、I have been（ ）.问题1选项A.given upB.stood upC.left upD.taken up【答案】C【解析】考查动词辨析。A选项given up“放弃”；B选项stood up“站起来，坚持”；C选项left up“离开，丢下”；D选项taken up“拿起，开始从事，占据（时间，地方）”。句意：那天晚上我本来要和你妹妹一起去听音乐会的，但是你妹妹没来。真不敢相信我被_。这里因为另一个人的妹妹没有来，所以说话的人应该是觉得自己“被丢下/抛弃了”，因此C选项符合题意。12. 单选题Although architecture has artistic qualities

34、, it must also satisfy a number of important practical（ ）.问题1选项A.obligationsB.regulationsC.observationsD.considerations【答案】D【解析】考查名词辨析。A选项obligations“义务，债务”；B选项regulations“条例，规程”；C选项observations“观察，观察值”；D选项considerations“考虑，注意事项”。句意：虽然建筑具有艺术性，但它也必须满足一些重要的实际_。本句表达的意思是，虽然具有艺术性，但是还是要满足一些重要的实际注意事项。因此D选项

35、符合题意。13. 单选题According to the American federal government, residents of Hawaii have the longest life（ ）: 77.2 years.问题1选项A.scopeB.rankC.spanD.scale【答案】C【解析】考查名词辨析。A选项scope“范围，余地”；B选项rank“排名，等级”；C选项span“跨度，跨距，寿命”；D选项scale“规模，比例”。句意：根据美国联邦政府的统计，夏威夷居民的（ ）最长，为77.2岁。本句表达的意思是“夏威夷居民的寿命”，因此C选项符合题意。14. 单选题The

36、 sun is very large in comparison with its nine（ ）planets which, in turn, are circled by a total of thirty three satellites.问题1选项A.cyclingB.whirlingC.surroundingD.orbiting【答案】D【解析】考查形容词辨析。A选项cycling“骑脚踏车消遣，骑脚踏车兜风”；B选项whirling“旋转”；C选项surrounding“周围的，附近的”；D选项orbiting“盘旋；绕轨道运行”。句意：与九颗（ ）太阳运行的行星相比，太阳是非常大

37、的，而九颗行星又由三十三颗卫星环绕着。这里考查的是固定搭配orbiting planets“轨道行星”，因此D选项符合题意。15. 单选题The consumer（ ）in recent years has led to an explosion of shopping center development in big cities like Beijing, Shanghai and Canton.问题1选项A.boomB.pressureC.summitD.volume【答案】A【解析】考查动词辨析。A选项boom“繁荣，迅速发展”；B选项pressure“迫使，密封”；C选项summi

38、t“顶峰，顶点”；D选项volume“成团卷起”。句意：近几年的消费（ ）促使北京、上海和广州这样的大城市中的购物中心快速地发展起来。这里的意思是“消费的繁荣使得购物中心发展”，因此A选项符合题意。16. 单选题With all its advantages, the computer is by no means without its（ ）.问题1选项A.boundariesB.restraintsC.confinementsD.limitations【答案】D【解析】考查名词辨析。A选项boundaries“边界，界限”；B选项restraints“限制，禁止”；C选项confineme

39、nts“监禁”；D选项limitations“局限性，（限制）因素”。句意：尽管计算机有许多优点，但它决不是没有（ ）。通过题干可以看出这里表达的意思是“计算机虽然优点很多，但是也会有局限性”，因此D选项符合题意。17. 写作题Directions: In this part, you are expected to write a composition entitled Pros Cons of Buying a Car in no less than 200 words. Your composition should be based on the following outlines

40、.有人赞成买私家车有人反对买私家车我的看法【答案】略18. 填空题Throughout the past century humanity did everything in its power to control nature. We dammed earths rivers, chopped down the forests and exhausted the soils. Burning up fuels, we pumped a great deal of greenhouse gases into the air, altering the chemistry of the atm

41、osphere and warming the planet in just a few decades. And as our population began the year 2000 above the 6 billion mark, still spreading across the continents, dozens of animal and plant species were dying out every day, including the first primate（灵长类）to disappear in more than 100 years.At the sta

42、rt of the 21st century there were unmistakable signs that nature was beginning to take its revenge. Melting ice in both poles of the earth suggested that the climate was changing rapidly. Weather was even more changeable than usual; giving some places too little rain and others too much. Fires raced

43、 across the dried American West last summer, and recent storms spread damages from Britain to China. No specific event could be directly blamed on global warming, floods and drought will be more frequentand severe. Other sad signs from an overburdened planet include falling grain and fish harvests a

44、nd fiercer competition for scarce water supplies.But there were also, in the year 2000, signs of great awareness. Connected by the Internet, hundreds of millions people gathered for the 30th anniversary of Earth Day, Governments from Washington to Lima took steps to protect the large wild areas from

45、 development. Progress was made toward using more renewable energy from the wind and the sun, and new cars that used both gasoline and electricity showed fuel-economy statistics.The goal for the new century is “sustainable (可持续的) development”. Is that possible? It depends on how well we understand t

46、hat humanity is part of nature, not lord and master.Mark “T” for True or “F” for False on the Answer Sheet._ 1. Species of animals and plants are increased._ 2. It can be inferred from the passage that scarce water supplies are directly caused by the larger population._ 3. Humanity built many dams i

47、n the past century._ 4. The phrase “sustainable development” in the last paragraph probably means that economic development will make full use of natural resources._ 5. The main purpose of the author is to make us aware of the importance of environment protection.【答案】FFTFT【解析】1.定位到第一段And as our popu

48、lation began the year 2000 above the 6 billion mark, still spreading across the continents, dozens of animal and plant species were dying out every day, including the first primate to disappear in more than 100 years.（当我们的人口在2000年开始时超过了60亿，仍然遍布各大洲，每天都有几十种动物和植物灭绝，包括100多年来第一个灭绝的灵长类动物。）可以看得出动植物物种都在减少，因

49、此题干错误。2.定位到第二段No specific event could be directly blamed on global warming, floods and drought will be more frequentand severe.（没有特定的事件可以直接归咎于全球变暖，洪水和干旱将会更频繁和严重。）可以看出目前并没有证据证明是人口增多引起的，因此题干错误。3.定位到第一段Throughout the past century humanity did everything in its power to control nature. We dammed earths

50、rivers, chopped down the forests and exhausted the soils.（在过去的一个世纪里，人类尽其所能控制自然。我们在河流上筑坝，砍伐森林，耗尽土壤。）通过这句话可以得出题干是正确的。4.定位到最后一段The goal for the new century is “sustainable development”. Is that possible? It depends on how well we understand that humanity is part of nature, not lord and master.（新世纪的目标是“

51、可持续发展”。这有可能吗?这取决于我们对人类是自然的一部分，而不是主人的理解程度。）因此可以看出，可持续发展指的并不是题干所说的“经济发展将充分利用自然资源”，而是人类要意识到自己要和大自然共同发展，因此题干错误。5.根据全文来看，作者一直都是在说明现在环境的恶劣，以及人类的责任重大，需要和自然好好相处，因此作者的意图就是希望大家重视环境保护问题。题干表达正确。19. 单选题People innately（ ）for superiority over their peers although it sometimes takes the form of an exaggerated lust

52、for power.问题1选项A.striveB.ascertainC.justifyD.adhere【答案】A【解析】考查动词短语。A选项“为奋斗，争取”；B选项“确定，探知”；C选项“证明是正当的”；D选项“坚持”，句意为：人们天生（ ）比同龄人优越，尽管有时表现为夸张的权力欲。本句表示“人们天生就想争取比同龄人优越”，因此A选项符合题意。20. 单选题Contemporary office technology requires software or programs to carry out complicated information processing activities.

53、 References to software usually indicate a set of instructions. A broader application of the term includes any no hardware element of a computer system: programs, written documentation to accompany programs, flow charts, and user manuals, for example. The latter use of the term is rare.Software is n

54、ow available from a variety of sources: hardware manufacturers and vendors, software houses (firms that develop and market software), and staff programmers (user developed software). Office supply houses, computer shops, and even bookstores market packaged software for the microcomputer market.Early

55、 computer users thought in terms of developing their own software or using software developed by computer manufactures to perform the information processing activities desired form the computer system. Users of medium to large scale computer system. Still rely heavily on programs developed, tested,

56、and perfected by their own programmers.Large to medium scale computer manufacturers or vendors have traditionally included software with the system package, sometimes provide alterations necessary to customize the programs to user needs. These packages have represented significant portions of the pu

57、rchases or lease price of systems.The microcomputer revolution in the early 1980s brought with it the concept of the commercial software publisher (software house). Companies were formed to engage in writing and marketing software for all types and sizes of computers, but those producing software fo

58、r microcomputers were especially numerous. Major hardware manufacturers began to market software produced by these software specialists with the systems. The quality of the programs and instructional materials that accompanied them was frequently poor. Because of the ease with which users could dupl

59、icate software, software prices remained high. Yet, these high prices were frequently preferable to the cost of programs developed in house. Experience and competition have increased a quality of both programs and instructional materials.1.According to the passage, the most commonly used definition

60、of software is（ ）.2.Which of the following statements is NOT true?3.Large to medium scale computer manufacturers（ ）.4.Since the microcomputer revolution in the early 1980s,（ ）.5.It is implied in the passage that（ ）.问题1选项A.complicated information processing activitiesB.any no hardware element of a co

61、mputer systemC.a set of instructionsD.flow charts and user manuals问题2选项A.Now hardware manufacturers also develop and market software.B.Early computer users had no choice but to develop their own software.C.Software is now available for the microcomputer user even from bookstores.D.Early computer manufacturers also developed and marketed software.问题3选项A.rely heavily on software developed by their customersB.used to include software with the system packageC.can make changes for software to meet customer needsD.sell their system packages at very