在OSPF协议中,对于DR的描述,下列错误的是()
A. 本广播网络中所有的路由器都将共同与DR选举
B. 若两台路由器的优先级值不同,则选择优先级值较小的路由器作为DR
C. 若两台路由器的优先级值相等,则选择Router ID大的路由器作为DR
DR和BDR之间也要建立邻接关系
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OSPF优点下列描述错误的是()
A. OSPF没有跳数限制
B. OSPF扩展性好
C. OSPF配置复杂
D. OSPF收敛速度快
I have seen a short_____from the film on television.
A. except
B. excerpt
C. expert
D. expect
I want to know_____the traffic is heavy on the highway.______the traffic is heavy, I will travel by train.
A. if; If
B. whether; Whether
C. if; Whether
D. that; If
Good evening, sir. I'm the Head Waiter and I'd like to apologize for ourcarelessness. May I____it _____for you?
A. clean out
B. clean up
C. clean skin
D. clean cut