受均布荷载的简支梁，长度为L，剪力最大的截面为( )。
A．跨中截面
B．支座截面
C．离支座1/3的截面
D．梁通长的剪力相等
参考答案：B
Open Shortest Path First(OSPF)is a (71) routing algorithm that (72) work done on theOSI IS-IS intradomain routing protocol. This routing, as compared to distance-vector routing,requires (73) processing power. The (74) algorithm is used to calculate mutes. OSPFrouting table updates only take place when necessary, (75) at regular intervals.
A．derived from
B．deviated from
C．was derived from
D．was deviated from
公安执法监督的核心是对公安机关及其人民警察履行职责、行使职权活动正确与否的监督。 ( )
