放线时的通信应畅通、清晰、()统一
A.命令
B.指示
C.要求
D.指令
参考答案:D
I understand why Sophie was angry but _____ was no need to be so rude to her brother. [ ]
A. it
B. that
C. there
D. this
CAPWAP控制消息包括以下哪几项内容。()
A.AP Discovery报文
B.AP的配置
C.DHCP报文
D.向AP发布固件镜像