单项选择题
A.0 B.2 C.8 D.10
A.箱式MCU B.箱盒式MCU C.机架式MCU D.机架式MCUC
A.媒体交换层 B.运营支撑层 C.网络控制层 D.用户接入层
A.Muti control unit B.Micro Control Unit C.Main Computational Unit D.Memory Control Unit
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