单选题Which of the following devices sets the framing type on a T1 circuit？（）ATransceiverBGateway ModemCRouterDCSU/DSU
单选题
Which of the following devices sets the framing type on a T1 circuit？（）
A
Transceiver
B
Gateway Modem
C
Router
D
CSU/DSU
参考解析
解析：
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