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【多选题】
关于边缘接入控制设备说法正确的是（）
A.
为放置在外网区的IAD和智能终端提供业务接入的控制设备
B.
具有安全防护、媒体管理、地址转换、私网穿越等功能
C.
配合软交换设备实现用户管理、业务管理
D.
配合承载网实现QoS管理
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【单选题】Once there was a famous English painter. His name was Peter. He was asked to paint some pictures on the walls of the king’s palace. With the help of a worker, Peter started painting on the platform (平...
A.
To paint some pictures on the walls of the king’s palace.
B.
To paint some pictures at home.
C.
To take pictures for the king.
相关题目：
【单选题】Once there was a famous English painter. His name was Peter. He was asked to paint some pictures on the walls of the king’s palace. With the help of a worker, Peter started painting on the platform (平...
A.
To paint some pictures on the walls of the king’s palace.
B.
To paint some pictures at home.
C.
To take pictures for the king.
参考解析：
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