足少阴肾经向上行至腹部的经脉，位于前正中线旁开几寸（）。
A.0.1寸
B.0.5寸
C.1寸
D.1.5寸
E.2寸
参考答案：B
Open Shortest Path First (OSPF) is a (66) routing algorithm that (67) work done on the OSI IS-IS intradomain routing protocol. This routing, as compared to distance-vector routing, requires (68) processing power. The (69) algorithm is used to calculate routes. OSPF routing table updates only take place when necessary, (70) at regular intervals.
A．Bellman-Ford
B．Ford-Fulkerson
C．Dijkstra
D．RIP
双回线中任一回线停送电操作，通常是先将受端电压调整至（）再拉开受端开关，调整至（）再合上受端开关。（）
A、上限值，上限值
B、上限值，下限值
C、下限值，上限值
D、下限值，下限值
