我国公务员法规定：公务员职位类别按照公务员职位的性质、特点和管理需要， 划分为哪些类别（）。
A. 综合管理类
B. 行政执法类
C. 立法研究类
D. 专业技术类
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根据《信用证统一惯例》，受益人超过提单签发日期后21天才交到银行议付的提单称为（）。
A. 过期提单
B. 倒签提单
C. 预借提单
D. 转船提单
Atechnicianistryingtoinstallaprevious-generationexpansioncardintotheirnewlaptop.However,thecardrefusestofitintotheexpansionslot.WhichofthefollowingisMOSTlikelythereason?（）
A. Thecardneedstohavethecompatibilityjumperssetbeforeitcanbeinstalledintothesystem.
B. ThecardisaPCIExpresscardandthelaptopsupportspcmica.
C. Theexpansionslotneedstobeenabledintheblosfirst.
D. ThecardisaPCMCIAcardandthelaptopsupportsPCIExpresscards.
Anetworkprinterwillnotprint.Theprinterisonlineandvisible.Alltheprintjobscompletebuttheprinterwillnotoperate.WhichofthefollowingistheMOSTlikelycause?（）
A. Thedrumisfaulty.
B. Theprintbufferisfull.
C. Theprinterisoutoftoner.
D. Thefuserisfaulty.
Youissuethepinginterfacet1-1/1/01.1.1.1bypass-routingcount1000rapidcommand.Whichstatementiscorrect?（）
A. Thebypass-routingparameterisusedtotestthedensityontheT1line
B. Thebypass-routingparametercannotbeusedonaT1interface
C. Thebypass-routingparameterallowsyoutopingahostthroughaninterfacethathasnoroutethroughit
D. Thebypass-routingparameterallowsyoutopingalocalWANinterfacewithoutgeneratinganyoutboundtraffic
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