MPLS OAM在提供检测工具的同时,还具备完善的保护倒换机制,能够在MPLS层发生故障后50ms内完成用户数据的倒换动作。
参考答案:对
Yongquan Temple,_________ from 908 and located in Gushan,Fuzhou,received crowds of people who came to welcome the Chinese New Year.
A.dating
B.to date
C.dated
D.having dated
《马可波罗游记》反映的是()时期中国的情况。
A.唐朝
B.秦朝
C.明朝
D.元朝