What is the objective of the aaa authentication login console-in local command？（）
A. It specifies the login authentication method list named console-in using the local user database on the router
B. It specifies the login authorization method list named console-in using the local RADIUS username-password data base
C. It specifies the login authentication list named console-in using the local username- password data base on the router
D. It specifies the login authorization method list named console-in using the local username- password data base on the router
查看答案
砼预制桩一般情况下都是在现场附近制作，以减少运输、吊装等工作，降低成本。
A. 正确
B. 错误
中兴软交换系统中，TD网络中核心网和RNS之间的接口是Iu口，Iu口的承载介质是（）
A. TDM
B. IP
C. ATM
D. 微波
The fuel supply system to an automatic auxiliary boiler, will be automatically shutdown if the boiler （）
A. salinity is abnormally high
B. steam demand is too high
C. water level is abnormally low
D. feedwater flow is low
在农电生产系统中，已经提交到下一环节又被退回的停电申请在（）中进行处理。
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