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发布时间:2024-02-14 00:50:52

[单选题]Even for one single connection, the retransmission time should not be fixed.A connection may be able to send segments and receive (74)faster during nontraffic period than during congested periods. TCP uses the dynamic retransmission time,a transmission time is different for each connection and which may be changed during the same connection.
A.connections
B.requests
C.acknowledgments
D.datagrams

更多"[单选题]Even for one single connection"的相关试题:

[单选题]The connection between two networks to from an internet is handled by a machine known as a ( ).
A.bridge
B.server
C.router
D.switch
[单选题]In other words, each connection creates a (72) witha length that may be totally different from another path created by another connection. This means that TCP cannot use the same retransmission time for all connections.
A.path
B.window
C.response
D.process
[单选题]“There is one and only one social responsibility of business,”wrote Milton Friedman,a Nobel prize-winning economist“That is,to use its resources and engage in activities designed to increase its profits.”But even if you accept Fiedman’s premise and regard corporate social responsibility(CSR)policies as a waste of shareholders money,things may not be absolutely clear-cut.New research suggests that CSR may create monetary value for companies–at least when they are prosecuted for corruption.The largest firms is America and Britain together spend more than$15 billion a year on CSR,according to an estimate by EPG,a consulting firm,This could add value to their businesses in three ways.First,consumers may take CSR spending as a“signal”that a company’s products are of high quality.Second,customers may be willing to buy a company’s products as an indirect way to donate to the good causes is helps.And third,through a more diffuse“halo effect,”whereby its good deeds earn it greater consideration from consumers and others.Previous studies on CSR have had trouble differentiating these effects because consumers can be affected by all three.A recent study attempts to separate them by looking at bribery prosecutions under America’s Foreign Corrupt Practices Act(FCP A).It argues that since prosecutors do not consume a company's products as part of their investigations,they could be influenced only by the halo effect.The study found that,among prosecuted firms,those with the most comprehensiveCSR programmes tendedto getmore lenient penalties.Their analysis ruled out the possibility that it was firms'political influence,rather than their CSR stand,that accounted for the leniency:Companies that contributed more to political campaigns did not receive lower fines.In all,the study concludes that whereas prosecutors should only evaluate a case based on its merits,they do seen to influenced by a company’s record in CSR."We estimate that either eliminating a substantial labour-rights concern,such as child labour,or increasing corporate giving by about 20%results in fines that generally are 40%lower than the typical punishment for bribing foreign officials,"says one researcher.Researchers admit that their study does not answer the question of how much businesses ought to spend on CSR.Nor does it reveal how much companies are banking on the halo effect,rather than the other possible benefits,when they decide their do-gooding policies.But at least have demonstrated that whencompanies get into trouble with the law,evidence of good character can win In all,the study concludes that whereas prosecutors should only evaluate a case based on its merits,they do seen to influenced by a company’s record in CSR."We estimate that either eliminating a substantial labour-rights concern,such as child labour,or increasing corporate giving by about 20%results in fines that generally are 40%lower than the typical punishment for bribing foreign officials,"says one researcher.Researchers admit that their study does not answer the question of how much businesses ought to spend on CSR.Nor does it reveal how much companies are banking on the halo effect,rather than the other possible benefits,when they decide their do-gooding policies.But at least have demonstrated that whencompanies get into trouble with the law,evidence of good character can win them a less costly punishment. When prosecutors evaluate a case,a company's CSR record.
A.has an impact on their decision.
B.comes across as reliable evidence.
C.increases the chance of being penalized.
D.constitutes part of the investigation.
[填空题]I subscribe( )one daily newspaper and one weekly magazine. to
[不定项选择题] “There is one and only one social responsibility of business,” wrote Milton Friedman, a Nobel prize-winning economist, “That is, to use its resources and engage in activities designed to increase its profits.” But even if you accept Friedman’s premise and regard corporate social responsibility (CSR) policies as a waste of shareholders’ money, things may not be absolutely clear-cut. New research suggests that CSR may create monetary value for companies—at least when they are prosecuted for corruption.   The largest firms in America and Britain together spend more than $15 billion a year on CSR, according to an estimate by EPG, a consulting firm. This could add value to their businesses in three ways. First, consumers may take CSR spending as a “signal” that a company’s products are of high quality. Second, customers may be willing to buy a company’s products as an indirect way to donate to the good causes it helps. And third, through a more diffuse “halo effect,” whereby its good deeds earn it greater consideration from consumers and others.   Previous studies on CSR have had trouble differentiating these effects because consumers can be affected by all three. A recent study attempts to separate them by looking at bribery prosecutions under America’s Foreign Corrupt Practices Act (FCP A). It argues that since prosecutors do not consume a company’s products as part of their investigations, they could be influenced only by the halo effect.   The study found that, among prosecuted firms, those with the most comprehensive CSR programmes tended to get more lenient penalties. Their analysis ruled out the possibility that it was firms’ political influence, rather than their CSR stand, that accounted for the leniency: Companies that contributed more to political campaigns did not receive lower fines.   In all, the study concludes that whereas prosecutors should only evaluate a case based on its merits, they do seem to be influenced by a company’s record in CSR. “We estimate that either eliminating a substantial labour-rights concern, such as child labour, or increasing corporate giving by about 20% results in fines that generally are 40% lower than the typical punishment for bribing foreign officials,” says one researcher.   Researchers admit that their study does not answer the question of how much businesses ought to spend on CSR. Nor does it reveal how much companies are banking on the halo effect, rather than the other possible benefits, when they decide their do-gooding policies. But at least they have demonstrated that when companies get into trouble with the law, evidence of good character can win them a less costly punishment. Which of the following is true of CSR, according to the last paragraph?
A.The necessary amount of companies’ spending on it is unknown.
B.Companies’ financial capacity for it has been overestimated.
C.Its negative effects on businesses are often overlooked.
D.It has brought much benefit to the banking industry.
[简答题]Even accepting that translation is technically possible,there is still the matter of its place in the literary hierarchy.Darkening any gloss on translation is the shadow of the original text,towering up"like a lifeless block of resistance."The dividing line between original and translation has been one of the assumed constants of translation theory and commentary,as jealously guarded as the frontier between two hostile nations,and rarely challenged.This supposedly inviolable border,however,is not an eternal truth:for centuries,from the Romans down to Chaucer and Shakespeare,it was common for so-called original works to incorporate large portions of texts from other languages.Around the early seventeenth century,however,attitudes began to change.Not only did the distinction between original and translation harden,but the sacred authoritv of the original was established.One reason for this attitude js technological:the rise of the printing press and the printed book brought forward the identity of the book's creator,which prioritized the notion of authorship and along with it the author's claim of copyright.Another is philosophical,stemming from both Biblical tradition and the Platonic notion of poetry as being divinely inspired and therefore levels above any attempt to replicate it.Finally,and regardless of the translator's talent,perhaps the most resistant aspect of the divide between translation and original derives from the fact that translation,by introducing one or more additional actors into the process,poses an uncomfortable challenge to our most deep-seated and cherished notions of how art is created.If we consider a work of art to be the unique expression of the artist's inner resources,then any adaptation of it,any reworking by an outside agency can only be seen as a pale imitation,more or less indicative of the"real thing"but by definition inferior to it.Rather than see this as a drawback,I recommend we consider it a liberation,an acknowledgment that the translator,freed from the unpleasant task of trying to establish exact equivalences,can now concentrate on the much more rewarding,and perfectly possible,task of doing justice to the source text by bringing her own talents to its cause.Again,this is not to say that there's no significant difference between a translation and its source.What we can question is the longstanding value system,by recognizing what the translator's literary skills bring to the mix.To present a work as aptly as possible,to re-create it in all its beauty and ugliness,takes sensitivity,empathy,flexibility,attentiveness,and tact.And,perhaps most of all,it takes respect for one's own work,the belief that one's translation is worth judging on its own merits(or flaws),and that,if done properly,it can stand shoulder to shoulder with the source text.
[单选题]The traditional way of allocating a single channel among multiple competing users is to chop up its ( ) by using one of the multiplexing schemes such as FDM (Frequency Division Multiplexing). If there are N users, the bandwidth is divided into N equal-sized portions, with each user being assigned one portion. Since each user has a private frequency ( ), there is no interference among users.When there is only a small and constant number of users, each of which has a steady stream or a heavy load of ( ), this division is a simple and efficient allocation mechanism. A wireless example is FM radio stations. Each station gets a portion of the FM band and uses it most of the time to broadcast its signal.However, when the number of senders is large and varying or the traffic is ( ), FDM presents some problems. If the spectrum is cut up into N regions while fewer than N users are currently interested in communicating, a large piece of valuable spectrum will be wasted. If more than N users want to communicate, some of them will be denied ( 本题 ) for lack of bandwidth.??
A.allowance
B.connection
C.percussion
D.percussion

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