Whichofthefollowingon－boardcomponentsisusedexclusivelyforexchangingdatawithremote machines?()A.PCIB.USBC.AGPD.NIC
题目
A.PCI
B.USB
C.AGP
D.NIC
相似考题
参考答案和解析
更多“Whichofthefollowingon－boardcomponentsisusedexclusivelyforexchangingdatawithremote machines?() ”相关问题
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第1题：
Acustomerplanstopurchaseap5-570thatwillruninSMPmodetohostalargefinancialdatabaseonAIX5.2.Theapplicationissizedforan8-way1.65-GHzmachine.TheydonotcurrentlyhaveanexistingHMCthatsupportsp5machines.Thisorganizationexperiencesunpredictableshort-termspikesinprocessorutilization.Tomitigatetherisktotheirbusiness，theyareinterestedinIBM’sCoDoffering.Inadditiontothe8-waysystem，whatelseshouldthepSeriestechnicalspecialistrecommendtothecustomer？（）
参考答案：C
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第2题：
材料：
The field current supply in older machines comes from a lower voltage direct current generator or exciter on the same shaft as the alternator. Modern machines however are either statically excited or of the high-speed brush-less type. The exciter is required to operate to counter the effects of power factor for a given load. The power factor is a measure of the phase difference between voltage and current and is expressed as the cosine of the phase angle. With a purely resistance load the voltage and the current are in phase, giving a power factor of one. The power consumed is therefore the product of voltage and current. Inductive or capacitive loads, combined with resistance loads, produce lagging or leading power factors which have a value less than one.
The power consumed is therefore the product of current, voltage and power factor. The alternating current generator supplying a load has a voltage drop resulting from the load. When the load has a lagging power factor this voltage drop is considerable. Therefore the exciter, in maintaining the alternator voltage, must vary with load current and also the power factor. The speed change of the prime mover must also be taken into account.
问题： The word “machines” in the passage refers to _____.
A.the direct current generator
B.the alternating current generator
C.the exciter
D.the prime mover
Which of the following statements is true according to the passage ?
A.With a purely resistance load, the power factor is zero
B.Inductive loads combined with resistance loads produces leading power factors
C.Capacitive loads combined with resistance loads produces lagging power factors
D.With a purely resistance load, the phase angle is zero
When the load has a lagging power factor this voltage drop is considerable. This sentence means that _____.A.with a purely resistance load, the voltage drops too much
B.there is a considerable voltage drop in the capacitive load combined with resistance load
C.when the load is the capacitive load combined with resistance load, the voltage drops to zero
D.when the load is the inductive load combined with resistance load, the voltage drop is fairly large
The exciter must vary with: ① load current ② the power factor, ③ speed change of the prime mover.A.①
B.②
C.①②
D.①②③
请帮忙给出每个问题的正确答案和分析，谢谢！
问题 1 答案解析：B
问题 2 答案解析：D
问题 3 答案解析：D
问题 4 答案解析：D
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第3题：
共用题干
第二篇
The next big breakthrough in artificial intelligence could come from giving machines not just more logical capacity,but emotional capacity as well.
Feeling aren't usually associated with inanimate（无生命的）machines, but Posalind Picard, a professor of computer technology at MIT,believes emotion may be just the thing computes need to work effectively.Computers need artificial emotion both to understand their human users better and to achieve self-analysis and self-improvement,says Picard.
"If we want computers to be genuinely intelligent,to adapt to us,and to interact naturally with us,then they will need the ability to recognize and express emotions,to have emotions,and to have what has come to be called emotional intelligence,"Picard says.
One way that emotions can help computers,she suggests,is by helping keep them from crashing. Today's computers produce error messages,but they do not have a "gut feeling" of knowing when something is wrong or doesn't make sense.A healthy fear of death could motivate a computer to stop trouble as soon as it starts.On the other hand, self-preservation would need to be subordinate to service to humans.It was fear of its own death that promoted RAL,the fictional computer in the film 2002 :A Space Odyssey, to extermine（消灭）most of its human associates.
Similarly,computers that could"read"their users would accumulate a store of highly personal information about us一not just what we said and did,but what we likely thought and felt.
"Emotion not only contribute to a richer quality of interaction,but they directly impact a person's ability to interact in an intelligent way,"Picard says."Emotional skills,especially the ability to recognize and express emotions,are essential for natural communication with humans."An emotionally intelligent computer is likely to__________.
A:have a successful interaction with human beings by adapting to their needs
B:enable human beings to enhance their ability to exprss emotions in daily life
C:automatically produce correct messages
D:be free from producing meaningless messages in its operation答案：A解析：事实细节题。本题考查文中人物的观点。可从第二段的结尾句中找到答案，选项A和C没有依据，选项B与第二段最后一句中的self-improvement不符，improve不等同于eliminate。
推理判断题。在第三段开头的条件状语从句中，" to adapt to us , and to interact naturally with us”既是与“to be genuinely intelligent”并列的结构，也是对其的补充解释，由此可以推断出答案。选项B无合理的依据。根据第四段第二句，情感只是让计算机知道什么时候出了毛病或指令不明，并可对此作出修正，但这并不能说明选项C或D正确。
词义推断题。在原句中，有了gut feeling，计算机就能知道何时出了毛病，由此可以推断gut feeling应该是一个好的特性，不带有任何贬义，从而排除选项B、C、D。
推理判断题。本题考查例子与观点的关系。该例子支持的观点是例子的前一句，即第四段第四句。其他选项并非作者在本文要阐明的目的。
推理判断题，也是观点态度题。根据文章开头以及综观全文可知，作者对改进被赋予情感的计算机的功能寄予了很高的期望。本题最具干扰性的是选项B，计算机对人类的威胁在第四段的例子里有步及，但这并非作者的主要想法，作者认为只要控制得好，情感计算机就能更高效（如最后一段所述）。 -
第4题：
Murphy&39;s Law suggests, "If anything can go wrong, it will." Murphy has motivated numerous pearls of wisdom about projects; machines, people, and why things go wrong. A project is a [temporary] sequence of unique, complex, and connected（ ）having one goal or purpose and that must be completed by a specific time, within budget, and according to （ ）.Project management is the（ ）of scoping, planning, staffing, organizing, directing, and controlling the development of an acceptable information system at a minimum cost within a specified time frame. Project management is a cross life cycle activity because it overlaps all phases of any systems development methodology. For any systems development project, effective project management is necessary to ensure that the project meets the deadline, is developed within a (an) （ ）budget, and fulfills customer expectations and specifications. Corporate rightsizing has changed the structure and culture of most organizations, and hence, project management. More flexible and temporary interdepartmental(不同部门间）teams that are given greater responsibility and authority for the success of organizations have replaced rigid hierarchical command structures and permanent teams. Contemporary system development methodologies depend on having teams that include both technical and nontechnical users, managers, and information technologists all directed to the project goal. These（ ）teams require leadership and project management.
A.activities B.tasks C.services D.softwareA.document B.order C.specification D.authorityA.process B.activity C.step D.taskA.predefined B.acceptable C.rigid D.StrictA.invariable B.fixed C.permanent D.dynamic
正确答案：A,C,A,B,D
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第5题：
共用题干
第二篇
The next big breakthrough in artificial intelligence could come from giving machines not just more logical capacity,but emotional capacity as well.
Feeling aren't usually associated with inanimate（无生命的）machines, but Posalind Picard, a professor of computer technology at MIT,believes emotion may be just the thing computes need to work effectively.Computers need artificial emotion both to understand their human users better and to achieve self-analysis and self-improvement,says Picard.
"If we want computers to be genuinely intelligent,to adapt to us,and to interact naturally with us,then they will need the ability to recognize and express emotions,to have emotions,and to have what has come to be called emotional intelligence,"Picard says.
One way that emotions can help computers,she suggests,is by helping keep them from crashing. Today's computers produce error messages,but they do not have a "gut feeling" of knowing when something is wrong or doesn't make sense.A healthy fear of death could motivate a computer to stop trouble as soon as it starts.On the other hand, self-preservation would need to be subordinate to service to humans.It was fear of its own death that promoted RAL,the fictional computer in the film 2002 :A Space Odyssey, to extermine（消灭）most of its human associates.
Similarly,computers that could"read"their users would accumulate a store of highly personal information about us一not just what we said and did,but what we likely thought and felt.
"Emotion not only contribute to a richer quality of interaction,but they directly impact a person's ability to interact in an intelligent way,"Picard says."Emotional skills,especially the ability to recognize and express emotions,are essential for natural communication with humans."According to Picard,emotion intelligence is necessary to computers because_________.
A:it can make computers analyze the information more efficiently
B:it can help to eliminate the computrs' innate problems
C:it can improve the mechanic capacity of computers
D:it can make computers achieve a better understanding of human users答案：D解析：事实细节题。本题考查文中人物的观点。可从第二段的结尾句中找到答案，选项A和C没有依据，选项B与第二段最后一句中的self-improvement不符，improve不等同于eliminate。
推理判断题。在第三段开头的条件状语从句中，" to adapt to us , and to interact naturally with us”既是与“to be genuinely intelligent”并列的结构，也是对其的补充解释，由此可以推断出答案。选项B无合理的依据。根据第四段第二句，情感只是让计算机知道什么时候出了毛病或指令不明，并可对此作出修正，但这并不能说明选项C或D正确。
词义推断题。在原句中，有了gut feeling，计算机就能知道何时出了毛病，由此可以推断gut feeling应该是一个好的特性，不带有任何贬义，从而排除选项B、C、D。
推理判断题。本题考查例子与观点的关系。该例子支持的观点是例子的前一句，即第四段第四句。其他选项并非作者在本文要阐明的目的。
推理判断题，也是观点态度题。根据文章开头以及综观全文可知，作者对改进被赋予情感的计算机的功能寄予了很高的期望。本题最具干扰性的是选项B，计算机对人类的威胁在第四段的例子里有步及，但这并非作者的主要想法，作者认为只要控制得好，情感计算机就能更高效（如最后一段所述）。 -
第6题：
The commodities were all inspected by the bureau before shipment.A:vehicles
B:cartons
C: goods
D: machines答案：C解析：本句意思：所有的商品在装船前都经过了检验局的检验。vehicle的意思为“交通工具， 车辆”; carton的意思为“纸板箱”;goods的意思为“货物”; machine的意思为“机器”。commodity 的意思为“货物，商品”，和goods的意思接近。