MS与BTS间,BTS与BSC间,BSC与TCU间,TCU与MSC间分别是下面接口()
A:Um,Ater,A,Abis
B:Um,Ater,Abis,A
C:Um,Abis,Ater,A
D:Um,Abis,A,Ater
出自:无线电调试工