A.端口信号丢失
B.端口有业务状态下人工配置OutofService
C.承载业务的物理端口单元不可用
D.端口NEAR(Local)环回已激活
When were the Shakers most active?
A.Between 1800 and 1850.
B.Between 1850 and 1900.
C.Between 1900 and 1950.
D.From 1950 to the present.
A.1570兆赫
B.1850兆赫
C.1227.60兆赫,1575.42兆赫
D.575.42兆赫,1227.60兆赫