[名词解释] 线性外推距离 linear extrapolation distance
[名词解释] Vector-distance矢量距离
[名词解释] 安全保护距离safe protection distance
[名词解释] 线间距离 distance between tracks
[单选题]RIP的管理距离(Administrative Distance)是()A .90B .100C .110D .120
[试题]B.yalmostanymeasure,thereisaboominInternet-basedinstruction.Injustafewyears,34percentofAmericanuniversitieshavebegunofferingsomeformofdistancelearning(DL),andamongthelargerschools,it’scloserto90percent.Ifyoudoubtthepopularityofthetrend,youprobablyhave