综合业务数字网的基本速率接口和基群速率接口的传输速率分别为( )。A.128K

练习题库2022-08-02  31

问题 综合业务数字网的基本速率接口和基群速率接口的传输速率分别为(  )。A.128Kbit/s和1.544Mbit/sB.144Kbit/s和2.048Mbit/sC.144Kbit/s和1.544Mbit/sD.64Kbit/s和2.048Mbit/s

选项 A.128Kbit/s和1.544Mbit/s
B.144Kbit/s和2.048Mbit/s
C.144Kbit/s和1.544Mbit/s
D.64Kbit/s和2.048Mbit/s

答案 B

解析
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