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下列关于分布式数据库管理系统的说法,错误的是

A、分布式数据库管理系统应能对各个场地的软硬件资源进行管理
B、分布式数据库管理系统应能管理全局数据字典
C、全局数据库管理系统是分布式数据库管理系统的核心,并负责创建和管理局部数据库
D、通信管理是分布式数据库管理系统的重要功能,负责在各个场地之间传送数据和消息,为各个场地的协同工作提供可靠通信
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正确答案:

C

答案解析:

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Cultureshockisanoccupationaldisease(职业病)forpeoplewhohavebeensuddenlytransplantedabroad.

Cultureshockiscausedbytheanxietythatresultsfromlosingallfamiliarsignsandsymbolsofsocialintercourse.Thosesignsareasfollowing:whentoshakehandsandwhattosaywhenmeetpeople,whenandhowtogivetips,howtomakepurchases,whentoacceptandrefuseinvitations,whentotakestatementsseriouslyandwhennot.Thesesigns,whichmaybewords,gestures,facialexpressions,orcustoms,areacquiredbyallofusinthecourseofgrowingupandasmuchapartofourcultureasthelanguagewespeakorthebeliefsweaccept.Allofusdependonhundredsofthesesignsforourpeaceofmindandday-to-dayefficiency,butwedonotcarrymostatthelevelofconsciousawareness.

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B.cultureshockiscausedbytheanxietyoflivinginastrangeculture

C.cultureshockhaspeculiarsymptoms

D.itisveryhardtocopewithlifeinanewsetting

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