单项选择题
引入LTE时哪个主要的技术因素是重要的是()
A.SEAMLESS VOICE HANDOVER
B.CIRCUIT SWITCHED SERVICES VIA UU
C.COMMON A-BIT INTERFACE
D.4D SCALABILITY
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单项选择题
A.SEAMLESS VOICE HANDOVER
B.CIRCUIT SWITCHED SERVICES VIA UU
C.COMMON A-BIT INTERFACE
D.4D SCALABILITY
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