单选题With the introduction of the electronic computer, there is no complicated problem _____ can be solved in a few hours.A butB whichC thatD what
题目
单选题
With the introduction of the electronic computer, there is no complicated problem _____ can be solved in a few hours.
A
but
B
which
C
that
D
what
相似考题
参考答案和解析
正确答案：
B
解析：
句意：由于引进了电子计算机，没有在几小时内解决不了的复杂问题。本题考查but的特殊用法，but除了作连接词外，还可以作关系代词，引导定语从句，以肯定的形式表达否定的意思，相当于“that/which…not”；本题若用that的话意思正相反。
句意：由于引进了电子计算机，没有在几小时内解决不了的复杂问题。本题考查but的特殊用法，but除了作连接词外，还可以作关系代词，引导定语从句，以肯定的形式表达否定的意思，相当于“that/which…not”；本题若用that的话意思正相反。
更多“With the introduction of the electronic computer, there is n”相关问题
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第1题：
中文“电子商务”一词源于英文的“(25)”。
A．Electronic Consumer
B．Electronic Commerce
C．Electronic Change
D．Electronic Communication
正确答案：B
解析：本题考查电子商务的基本概念，电子商务源于英文Electronic Commerce，简写为EC。 -
第2题：
Modern computers are electronic and(66)devices. The basic building block of a modem computer is a(67).
A．chemical
B．digital
C．phisical
D．anal0g
正确答案：B
解析：译文：现代计算机是电子数字设备，其校心部分是芯片。 -
第3题：
The term computer describes a device made up of a combination of electronic and electromechanical components． By itself, a computer has no（ ）and is referred to as hardware, which means simply the physical equipment． The hardware can&39;t be used until it is connected to other elements, all of which constitute the six parts of a computer-based information system, hardware, software, data/information, people, procedures and communications． A system is defined as a collection of related components that（ ）to perform a task in order to accomplish a goal． Any organization that uses information technology will have a computer-based information system to provide managers (and various categories of employees) with the appropriate kind of information to help them make decisions． Systems analysis and design is to ascertain how a system works and then take steps to make it （ ）Often, a system approach is used to define, describe, and solve a problem or to meet a(an)（ ） From time to time, organizations need to（ ）their information systems, in, response to new marketing&39; opportunities, modified government regulations, the introduction ．of new technology, merger with another company, or other developments． When change is needed, the time is ripe for applying the principles of systems analysis and design．
A.information B.software C.intelligence D.dataA.interact B.work C.connect D.changeA.improved B.better C.good D.bestA.decision B.need C.standard D.objectiveA.modify B.replace C.changeD.transfer
正确答案：C,A,B,D,C
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第4题：
Inerting means ______．
A.The introduction of inert gas into a tank with the object of reducing the oxygen content to below 8% by volume
B.The introduction of inert gas into a gas free tank for the purpose of reducing the oxygen content to below 8% by volume
C.The introduction of inert gas into a cargo tank during cargo discharge to replace the volume of discharged cargo
D.All of the above
正确答案：D
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第5题：
An（），serving a function similar to a physical wallet, holds credit card numbers, electronic cash, owner identification, and owner contact information and provides that information at an electronic commerce site's checkout counter.
A.electronic wallet
B.electronic commerce
C.third party payment
D.Internet banking答案：A解析： -
第6题：
共用题干
Computer Mouse
The basic computer mouse is an amazingly clever invention with a relatively simple design that allows us to point at things on the computer and it is very productive.Think of all the things you can do with a mouse like selecting text for copying and pasting,drawing,and even scrolling on the page with the newer mice with the wheel. Most of us use the computer mouse daily without stopping to think how it works until it gets dirty and we have to learn how to clean it. We learn to point at thing before we learn to speak,so the mouse is a very natural pointing device.Other computer pointing devices include light pens,graphics tablets and touch screen,but the mouse is still our workhorse.
The computer mouse was invented in 1964 by Douglas Englehart of Stanford University.As computer screens became popular and arrow keys were used to more around a body of text,it became clear that a pointing device that allowed easier motion through the text and even selection of text would be very useful.The introduction of the mouse,with the Apple Lisa computer in 1983,really started the computer public on the road to relying on the mouse for routine computer tasks.
How does the mouse work?We have to start at the bottom,so think upside down for now. It all starts with mouse ball. As the mouse ball in the bottom of the mouse rolls over the mouse pad,it presses against and turns two shafts.The shafts are connected to wheels with several small holes in them. The wheels have a pair of small electronic light-emitting devices called light emitting diodes (LED)mounted on either side.One LED sends a light beam to the LED on the other side.As the wheels spin and a hole rotates by,the light beam gets through to the LED on the other side.But a moment later the light beam is blocked until the next hole is in place.The LED detects a changing pattern of light,converts the pattern into an electronic signal,and sends the signal to the computer through wires in a cable that goes out the mouse body.This cable is the tail that helps give the mouse its name.The computer interprets the signal to tell it where to position the cursor on the computer screen.
So far we have only discussed the basic computer mouse that most of you probably have or have used.One problem with this design is that the mouse gets dirty as the ball rolls over the surface and picks up the dirt. Eventually you have to clean your mouse. The newer optical mice avoid this problem by having no moving parts.The optical mouse is superior to the basic one in that the former has no moving parts.
A:Right
B:Wrong
C:Not mentioned答案：A解析：原文第一段第三句表明，大多数人虽然每天都在用鼠标，但并没有停下来去思考鼠标的工作原理。
文章中没有出现与问题句的内容相呼应的信息，因此判断问题句的内容在文章中没有被提到。
原文第三段倒数第二、三句指出，由于这个从鼠标中伸出的线缆像条尾巴一样，所以鼠标因此而得名。
原文第三段提及两个发光二极管在鼠标中的具体工作方式：二极管把光信号转换成电信号，传送到电脑。由此可看出二极管是鼠标中的关键部件。
原文最后一段第二句可以看到，如果鼠标脏了，需要做的是清洁，而不是换个新的。
文章没有谈到这方面的信息。
原文是："The newer optical mice avoid this problem by having no moving parts.”新型的光电鼠标无移动部件，因而避免了老式鼠标的缺点。 -
第7题：
Given the advantages of electronic money,you might think that we would move quickly to the cashless society in which all payments are made electronically.1 a true cashless society is probably not around the corner.Indeed,predictions have been 2 for two decades but have not yet come to fruition.For example,Business Week predicted in 1975 that electronic means of payment would soon"revolutionize the very 3 of money itself,"only to 4itself several years later.Why has the movement to a cashless society been so 5 in coming?Although electronic means of payment may be more efficient than a payments system based on paper,several factors work 6 the disappearance of the paper system.First,it is very 7 to set up the computer,card reader,and telecornmunications networks necessary to make electronic money the 8 form of payment Second,paper checks have the advantage that they 9 receipts,something that many consumers are unwilling to 10.Third,the use of paper checks gives consumers several days of"float"-it takes several days 11 a check is cashed and funds are 12 from the issuer's account,which means that the writer of the check can cam interest on the funds in the meantime.13 electronic payments arc immediate,they eliminate the float for the consumer.Fourth,electronic means of payment may 14 security and privacy concerns.We often hear media reports that an unauthorized hacker has been able to access a computer database and to alter information 15 there.The fact that this is not an 16 occurrence means that dishonest persons might be able to access bank accounts in electronic payments systems and 17 from someone else's accounts.The 18 of this type of fraud is no easy task,and a new field of computer science is developing to 19 security issues.A further concern is that the use of electronic means of payment leaves an electronic 20 that contains a large amount of personal data.There are concerns that government,employers,and marketers might be able to access these data,thereby violating our privacy.6选？A.for
B.against
C.with
D.on答案：B解析：词义辨析【直击答案】本题空格所在句为several factors work__6 the disappearance of the paper system.本句前是由although“尽管…”引导的让步状语从句，故从句和主句含义是转折关系，意为“尽管电子支付方式可能比纸币支付方式更有效率，然而以下因素阻止了纸币系统的消失”，故答案为B项against。work against…“妨碍，对……产生消极影响”。【命题思路】本题考查考生对让步状语从句的理解，同时考查同一动词搭配不同介词动词短语意义的辨析。【干扰排除】本题四个选项是动词work搭配不同介词的动词短语，有一定干扰性。D项干扰性较强。如考生没有理解although引导的让步状语从句的含义，便会误选D。 -
第8题：
The term computer describes a device made up of a combination of electronic components．By itself, a computer has no ( ) and is referred to as hardware, which means simply the physical equipment． The hardware can't be used until it is connected to other elements, all of which constitute the six parts of a computer-based information system,hardware,software,data/information, people, procedures and communications．
A system is defined as a collection of related components that ( ) to perform a task in order to accomplish a goal． Any organization that uses information technology will have a computer-based information system to provide managers (and various categories of employees with the appropriate kind of information to help them make decisions．
Systems analysis and design is to ascertain how a system works and then take steps to make it ( ) Often, a system approach is used to define, describe, and solve a problem or to meet a(an)（ ）
From time to time, organizations need to (5 ) their information systems, in, response to new marketing' opportunities, modified government regulations, the introduction ．of new technology, merger with another company, or other developments． When change is needed, the time is ripe for applying the principles of systems analysis and design．
（5）应选（ ）。
A. modify
B. replace
C. Change
D. transfer答案：C解析：翻译：
计算机这个术语描述由电子的和机电的部件组合而成的一种设备。计算机本身没有只能，因此称为硬件，仅仅是物理设备。硬件只有和其他要素连接才能使用，所有这些要素即为构成基于计算机信息系统的六要素：硬件、软件、数据/信息、人、操作程序和通信。
系统定义为一组相关组件的集合，这些组件相互交互以完成一个任务，以实现一个目标。任何使用信息技术的组织会拥有一个基于计算机的信息系统，给管理人员（和各类员工）提供适当类型的信息以帮助他们做出决策。
系统分析和设计是确定系统如何工作然后经过一系列步骤以使其更好。通常，采用系统方法来定义、描述和解决一个问题或满足一个目标。
随着时间推移，新的市场机会、政府规定的变化、新技术的出现、公司兼并以及其他方面的发展等，使得组织需要改变其信息系统。当需要改变时，应用系统分析与设计的时机已经成熟。 -
第9题：
共用题干
Computer Mouse The basic computer mouse is______(51)amazingly clever invention with a relatively simple design that allows us to point at things on the computer and it is very productive.Think of all the things you can do with a mouse like selecting text for copying and pasting , drawing , and even scrolling（滚动）on the page with the newer mice with the wheel.Most of us use the computer mouse daily without stopping to think how it______(52)until it gets dirty and we have to learn how to______(53)it.We learn to point at things______(54)we learn to speak,so the mouse is a very natural pointing device.Other computer pointing devices include light pens,graphics tablets and touch screens,but the mouse is still our workhorse. The computer mouse was_____(55)in 1964 by Douglas Englehart of Stanford University.As computer screens became more popalar and arrow keys were used to move around a body of text,it became clear that a pointing device that allowed easier motion through the text and even selection of text would be very useful.The introduction of the mouse,with the Apple lisa computer in 1983,really started the computer public on the road to relying on the mouse_____(56)routine computer tasks. How does the mouse work?We have to start at the bottom,so think upside down for now.It all starts with the mouse ball.As the mouse ball in the bottom of the mouse rolls over the mouse pad,it presses against and turns two shafts（轴）.The shafts are connected to wheels with several small holes in them.The wheels have a pair of small electronic light-emitting devices______(57) light-emitting diodes(LED)mounted on either side.One LED sends a light beam to the LED on______(58)side.As the wheels spin and a hole rotates by,the light beam gets through to the LED on the other side.But a moment______(59)the light beam is blocked until the next hole is in place.The LED______(60)a changing pattern of light, converts the pattern______(61)an electronic signal,and sends the signal to the computer through wires in a cable that goes out of the mouse body.This cable is the tail that helps give the mouse its name.The computer interprets the signal to tell it where to position the cursor on the computer______(62). So far we have only discussed the basic computer mouse that______(63)of you probably have or have used.One problem with this design is that the mouse gets dirty as the ball rolls over the surface and picks up dirt.______(64)you have to clean your mouse.The newer optical mice______(65)this problem by having no moving parts.61._________
A:in
B:from
C:for
D:into答案：D解析：前面并没有提到过电脑鼠标，这里是泛指，又由于空格后的单词读音由元音音素开头，故选B项。the 是定冠词，特指已提到的人或物；an 是不定冠词，用在以元音音素开头的可数名词前，表示“一个”;a也是不定冠词，用在不是以元音音素开头的可数名词前，也表示“一个”。
这里表示：我们虽然每天都在用鼠标，却没人会思考鼠标是怎么工作的。make制造，制作；do做，干；get得到，收到；work工作，运作。
由空格前的“it gets dirty”可知，空格处应为clean。clear清楚的，明白的，清晰的；clerk店员，职员，办事员；dean清洁，清理；check检查，核对。
按照人类生长的一般规律，学习用手指指东西理应发生在学习说话之前。before在……之前，先于；after在……以后；until到……为止；u沮ess除非，如果不。
鼠标是一项发明创造，而不是一项发现。find发现，找到，发觉；make制作，制造；discover发现；invent发明，创造。
依照逻辑推理，电脑鼠标的引人应该是为了使电脑完成日常任务。四个介词中只有for能够表示目的。
called在这里是“被称作”之意。这句话的意思是电子发光设备被人们称为LED,A项符合题意。
根据空格前一句提到的either可知，滚轮总共有两边，两者中的另一个应用the other来表示。other与复数名词连用，与others表示相同的意思。
later表示一段时间以后，是英语中的习惯用法。late晚的，迟到的，晚期的；Iater一段时间以后；after在……之后；when当……时候。
这里说的是LED的一种功能，即它能探测光线模式的改变。detect探测，发现；develop发展，开发；relieve解除，缓解；support支持，帮助，支撑。
convert…into…是固定短语，表示“把某事物转化为另一事物”。
此处表示的是“给电脑屏幕上的光标定位”。desk书桌，办公桌；table餐桌，目录；screen屏幕；mouse鼠标。
电脑鼠标应该是大多数人都用过的，故选most。much许多，与不可数名词连用；whole全部的，所有的，完整的；most大多数的，大部分的；few不多，很少。
鼠标变脏后，最终要清理，这里用eVentually来表示。comPletely完全地，彻底地；eventually最后地，最终地；specially特别地，特意地；particularly特别，尤其。根据题意，应选B。
结合上下文语境可知，光学鼠标避免了鼠标变脏的问题。ban禁止；avoid避开，避免，防止；allow允许，承认，准许；adapt使适应，使适合。 -
第10题：
1946年2月14日，标志现代计算机诞生的ENIAC（The Electronic Numerical Integrator And Computer）在（）面世。
正确答案:费城 -
第11题：
单选题Complicated ______ it is, the problem can be solved in only two hours with an electronic computer.Aalthough
Beven though
Ceven if
Das
正确答案： D解析：
虽然这个问题很复杂，但是用计算机只要两个小时就能解决。这里用了adj+as it is句型，表示虽然…。其他选项不符合题意。 -
第12题：
问答题简述Electronic Commerce和Electronic Business的区别。正确答案： （1）前者强调的是在网络环境下的商业应用，是把买家、卖家、厂商合作伙伴在互联网、企业内部网、企业外部网结合起来的应用，特别是网上电子贸易。
（2）后者不仅仅是网上贸易，也不限于商业化应用，而是电脑网络在社会各个领域的全面应用。解析： 暂无解析 -
第13题：
The display screen is the most common (72) device used to show you what the computer is doing．
A．input
B．printing
C．output
D．electronic
正确答案：C
解析：显示器是最常见的输出设备，用来显示你的计算机正在做的工作。 -
第14题：
There is no question that computer applications such as(71), electronic mail, and(72)publishing have changed the way people work. These computer applications have enhanced users capacity for communication and have improved their productivity. The success of these applications has prompted both vendors and researchers to continue to seek new ways to further advance the information technology revolution. Enter the latest innovation: networked(73)systems. They convey information in multiple(74): text, graphics, video, audio,(75), computer simulations, and so forth. Advocates of these systems argue that they are the next logical step in human communication; however, modifying our current networks to accommodate the variety of media will present significant technical difficulties.
A．word transaction
B．word processing
C．word disposal
D．word dealing
正确答案：B
解析：wordprocessing：文字处理。 -
第15题：
Businesses have also been engaging in a type of electronic commerce , （ ）occurs when one business transmits computer-readable data in a standard format to another business.
A.EFT B.EDI C.ERP D.CRM
正确答案：B
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第16题：
Businesses have also been engaging in a type of electronic commerce, ______ occurs when one business transmits computer-readable data in a standard format to another business.A.EFT
B.EDI
C.ERP
D.CRM答案：B解析： -
第17题：
共用题干
Computer Mouse
The basic computer mouse is an amazingly clever invention with a relatively simple design that allows us to point at things on the computer and it is very productive.Think of all the things you can do with a mouse like selecting text for copying and pasting,drawing,and even scrolling on the page with the newer mice with the wheel. Most of us use the computer mouse daily without stopping to think how it works until it gets dirty and we have to learn how to clean it. We learn to point at thing before we learn to speak,so the mouse is a very natural pointing device.Other computer pointing devices include light pens,graphics tablets and touch screen,but the mouse is still our workhorse.
The computer mouse was invented in 1964 by Douglas Englehart of Stanford University.As computer screens became popular and arrow keys were used to more around a body of text,it became clear that a pointing device that allowed easier motion through the text and even selection of text would be very useful.The introduction of the mouse,with the Apple Lisa computer in 1983,really started the computer public on the road to relying on the mouse for routine computer tasks.
How does the mouse work?We have to start at the bottom,so think upside down for now. It all starts with mouse ball. As the mouse ball in the bottom of the mouse rolls over the mouse pad,it presses against and turns two shafts.The shafts are connected to wheels with several small holes in them. The wheels have a pair of small electronic light-emitting devices called light emitting diodes (LED)mounted on either side.One LED sends a light beam to the LED on the other side.As the wheels spin and a hole rotates by,the light beam gets through to the LED on the other side.But a moment later the light beam is blocked until the next hole is in place.The LED detects a changing pattern of light,converts the pattern into an electronic signal,and sends the signal to the computer through wires in a cable that goes out the mouse body.This cable is the tail that helps give the mouse its name.The computer interprets the signal to tell it where to position the cursor on the computer screen.
So far we have only discussed the basic computer mouse that most of you probably have or have used.One problem with this design is that the mouse gets dirty as the ball rolls over the surface and picks up the dirt. Eventually you have to clean your mouse. The newer optical mice avoid this problem by having no moving parts.When an ordinary computer mouse gets dirty,it has to be replaced with a new one.
A:Right
B:Wrong
C:Not mentioned答案：B解析：原文第一段第三句表明，大多数人虽然每天都在用鼠标，但并没有停下来去思考鼠标的工作原理。
文章中没有出现与问题句的内容相呼应的信息，因此判断问题句的内容在文章中没有被提到。
原文第三段倒数第二、三句指出，由于这个从鼠标中伸出的线缆像条尾巴一样，所以鼠标因此而得名。
原文第三段提及两个发光二极管在鼠标中的具体工作方式：二极管把光信号转换成电信号，传送到电脑。由此可看出二极管是鼠标中的关键部件。
原文最后一段第二句可以看到，如果鼠标脏了，需要做的是清洁，而不是换个新的。
文章没有谈到这方面的信息。
原文是："The newer optical mice avoid this problem by having no moving parts.”新型的光电鼠标无移动部件，因而避免了老式鼠标的缺点。 -
第18题：
共用题干
Computer Mouse
The basic computer mouse is an amazingly clever invention with a relatively simple design that allows us to point at things on the computer and it is very productive.Think of all the things you can do with a mouse like selecting text for copying and pasting,drawing,and even scrolling on the page with the newer mice with the wheel. Most of us use the computer mouse daily without stopping to think how it works until it gets dirty and we have to learn how to clean it. We learn to point at thing before we learn to speak,so the mouse is a very natural pointing device.Other computer pointing devices include light pens,graphics tablets and touch screen,but the mouse is still our workhorse.
The computer mouse was invented in 1964 by Douglas Englehart of Stanford University.As computer screens became popular and arrow keys were used to more around a body of text,it became clear that a pointing device that allowed easier motion through the text and even selection of text would be very useful.The introduction of the mouse,with the Apple Lisa computer in 1983,really started the computer public on the road to relying on the mouse for routine computer tasks.
How does the mouse work?We have to start at the bottom,so think upside down for now. It all starts with mouse ball. As the mouse ball in the bottom of the mouse rolls over the mouse pad,it presses against and turns two shafts.The shafts are connected to wheels with several small holes in them. The wheels have a pair of small electronic light-emitting devices called light emitting diodes (LED)mounted on either side.One LED sends a light beam to the LED on the other side.As the wheels spin and a hole rotates by,the light beam gets through to the LED on the other side.But a moment later the light beam is blocked until the next hole is in place.The LED detects a changing pattern of light,converts the pattern into an electronic signal,and sends the signal to the computer through wires in a cable that goes out the mouse body.This cable is the tail that helps give the mouse its name.The computer interprets the signal to tell it where to position the cursor on the computer screen.
So far we have only discussed the basic computer mouse that most of you probably have or have used.One problem with this design is that the mouse gets dirty as the ball rolls over the surface and picks up the dirt. Eventually you have to clean your mouse. The newer optical mice avoid this problem by having no moving parts.Most computer users want to know how the computer mouse works.
A:Right
B:Wrong
C:Not mentioned答案：B解析：原文第一段第三句表明，大多数人虽然每天都在用鼠标，但并没有停下来去思考鼠标的工作原理。
文章中没有出现与问题句的内容相呼应的信息，因此判断问题句的内容在文章中没有被提到。
原文第三段倒数第二、三句指出，由于这个从鼠标中伸出的线缆像条尾巴一样，所以鼠标因此而得名。
原文第三段提及两个发光二极管在鼠标中的具体工作方式：二极管把光信号转换成电信号，传送到电脑。由此可看出二极管是鼠标中的关键部件。
原文最后一段第二句可以看到，如果鼠标脏了，需要做的是清洁，而不是换个新的。
文章没有谈到这方面的信息。
原文是："The newer optical mice avoid this problem by having no moving parts.”新型的光电鼠标无移动部件，因而避免了老式鼠标的缺点。 -
第19题：
Given the advantages of electronic money,you might think that we would move quickly to the cashless society in which all payments are made electronically.1 a true cashless society is probably not around the corner.Indeed,predictions have been 2 for two decades but have not yet come to fruition.For example,Business Week predicted in 1975 that electronic means of payment would soon"revolutionize the very 3 of money itself,"only to 4itself several years later.Why has the movement to a cashless society been so 5 in coming?Although electronic means of payment may be more efficient than a payments system based on paper,several factors work 6 the disappearance of the paper system.First,it is very 7 to set up the computer,card reader,and telecornmunications networks necessary to make electronic money the 8 form of payment Second,paper checks have the advantage that they 9 receipts,something that many consumers are unwilling to 10.Third,the use of paper checks gives consumers several days of"float"-it takes several days 11 a check is cashed and funds are 12 from the issuer's account,which means that the writer of the check can cam interest on the funds in the meantime.13 electronic payments arc immediate,they eliminate the float for the consumer.Fourth,electronic means of payment may 14 security and privacy concerns.We often hear media reports that an unauthorized hacker has been able to access a computer database and to alter information 15 there.The fact that this is not an 16 occurrence means that dishonest persons might be able to access bank accounts in electronic payments systems and 17 from someone else's accounts.The 18 of this type of fraud is no easy task,and a new field of computer science is developing to 19 security issues.A further concern is that the use of electronic means of payment leaves an electronic 20 that contains a large amount of personal data.There are concerns that government,employers,and marketers might be able to access these data,thereby violating our privacy.19选？A.cope with
B.fight against
C.adapt to
D.call for答案：A解析：本题空格所在句为…and a new field of computer science is developing to__19 security issues.根据上下文应该选一个有“应对”安全问题含义的动词词组，A项cope with“处理，应对”，是最佳答案。【命题思路】本题考查考生对动词短语的掌握和应用。【干扰排除】本题根据上下文可排除C项和D项，B项“对抗，反抗”也不符合原文意思。 -
第20题：
The term computer describes a device made up of a combination of electronic components．By itself, a computer has no ( ) and is referred to as hardware, which means simply the physical equipment． The hardware can't be used until it is connected to other elements, all of which constitute the six parts of a computer-based information system,hardware,software,data/information, people, procedures and communications．A system is defined as a collection of related components that (请作答此空) to perform a task in order to accomplish a goal． Any organization that uses information technology will have a computer-based information system to provide managers (and various categories of employees with the appropriate kind of information to help them make decisions．Systems analysis and design is to ascertain how a system works and then take steps to make it ( ) Often, a system approach is used to define, describe, and solve a problem or to meet a(an)（ ）From time to time, organizations need to ( )their information systems, in, responseto new marketing' opportunities, modified government regulations, the introduction ．of new technology, merger with another company, or other developments． When change is needed, the time is ripe for applying the principles of systems analysis and design．A.interact
B.work
C.connect
D.change答案：A解析：计算机这个术语描述由电子的和机电的部件组合而成的一种设备。计算机本身没有只能，因此称为硬件，仅仅是物理设备。硬件只有和其他要素连接才能使用，所有这些要素即为构成基于计算机信息系统的六要素：硬件、软件、数据/信息、人、操作程序和通信。系统定义为一组相关组件的集合，这些组件相互交互以完成一个任务，以实现一个目标。任何使用信息技术的组织会拥有一个基于计算机的信息系统，给管理人员（和各类员工）提供适当类型的信息以帮助他们做出决策。系统分析和设计是确定系统如何工作然后经过一系列步骤以使其更好。通常，采用系统方法来定义、描述和解决一个问题或满足一个目标。随着时间推移，新的市场机会、政府规定的变化、新技术的出现、公司兼并以及其他方面的发展等，使得组织需要改变其信息系统。当需要改变时，应用系统分析与设计的时机已经成熟。 -
第21题：
简述Electronic Commerce和Electronic Business的区别。
正确答案:（1）前者强调的是在网络环境下的商业应用，是把买家、卖家、厂商合作伙伴在互联网、企业内部网、企业外部网结合起来的应用，特别是网上电子贸易。
（2）后者不仅仅是网上贸易，也不限于商业化应用，而是电脑网络在社会各个领域的全面应用。 -
第22题：
单选题With the introduction of the electronic computer, there is no complicated problem _____ can be solved in a few hours.Abut
Bwhich
Cthat
Dwhat
正确答案： D解析：
句意：由于引进了电子计算机，没有在几小时内解决不了的复杂问题。本题考查but的特殊用法，but除了作连接词外，还可以作关系代词，引导定语从句，以肯定的形式表达否定的意思，相当于“that/which…not”；本题若用that的话意思正相反。 -
第23题：
单选题Inerting means（）.Athe introduction of inert gas into a tank with the object of reducing the oxygen content to below 8% by volume
Bthe introduction of inert gas into a gas free tank for the purpose of reducing the oxygen content to below 8% by volume
Cthe introduction of inert gas into a cargo tank during cargo discharge to replace the volume of discharged cargo
DAll of the above
正确答案： C解析： 暂无解析 -
第24题：
单选题According to the passage, American electronic waste is exported to other countries because these countries have______.Athe resources and more space to process the e-waste
Bless strictly enforced environmental safety standards
Ca lot of skilled e-waste workers
Dmany computer recycling businesses
正确答案： C解析：