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对指令间“一次重叠”描述不正确的是()。

A、仅“执行k”与“分析k+1”
B、“分析k+1”完成后立即开始“执行k+1”
C、应尽量使“分析k+1”与“执行k”时间相等
D、只需要一套指令分析部件和执行部件
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正确答案:

B

答案解析:

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However,firmsoftenhavecommunicationproblemsthatcanunderminetheirperformance.Inmanycases,theseproblemsoccurbecausemessagesarepassedoninaninappropriateway.Thereare,ofcourse,severalwaysofconveyinginformationtoothersintheorganizationwhichincludespeakingtothemdirectly,e-mailing,telephoningorsendingamemo.Themostappropriatemethoddependsonwhatexactlyitisyouarecommunicating.Forexample,anythingthatisparticularlysensitiveorconfidential,suchasanemployee'sappraisal,shouldbedoneface-to-face.

Oneofthemainproblemsforseniorexecutivesisthattheydonothavethetimeorresourcesneededtocommunicateeffectively.Inlargecompanies,forexample,itisimpossibleforseniormanagerstomeetanddiscussprogresswitheachemployeeindividually.Obviouslythistaskcanbedelegatedbutatthecostofcreatingagapbetweenseniormanagementandstaff.Asaresult,managersareoftenforcedtouseothermethodsofcommunication,likememosornotes,eveniftheyknowthesearenotnecessarilythemostsuitablemeansofpassingonmessages.

Theuseoftechnology,suchase-mail,mobilephonesandnetworksystems,isspeedingupcommunicationimmensely.However,thisdoesnotmeanthatmoreinvestmentintechnologyautomaticallyprovesbeneficial:systemscanbecomeoutdatedoremployeesmaylackappropriatetraining.Therearemanycommunicationstoolsnowavailablebutafirmcannotaffordallofthem.Evenifitcould,itdoesnotactuallyneedthemall.Thepotentialgainsmustbeweighedupagainstthecosts,andfirmsshouldrealizethatmorecommunicationdoesnotnecessarilymeanbettercommunication."

Asthenumberofpeopleinvolvedinanorganizationincrease,theuseofwrittencommunicationrisesevenfaster.Insteadofaquickconversationtosortsomethingoutnumerousmessagescanbepassedbackwardsandforwards.Thiscanleadtoatremendousamountofpaperworkandisoftenlesseffectivethanface-to-facecommunication.Whenyouareactuallytalkingtosomeoneyoucandiscussthingsuntilyouarehappythattheyhaveunderstoodandfeedbackisimmediate.Withwrittenmessages,however,youareneverquitesurehowitwillbereceivedwhatyouthinkyouhavesaidandwhattheotherpersonthinksyouhavesaidcanbeverydifferent.

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B.anexplanationofhowcompanytargetshavebeenset.

C.informationonpromotionprospectswithinthecompany.

D.anindicationofwhichdutiestheycanexpectassistancewith.areastheycouldimprove

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