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TM中的CBR(constant bit rate)模拟的是什么业务?( )
分类: 通信专业业务
发布时间: 2023-11-19 12:01
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TM中的CBR(constant bit rate)模拟的是什么业务?( )
A.A、报文交换
B.B、分组交换
C.C、电路交换
D.D、时分交换
正确答案是C
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