问题
单项选择题
哪个不是operater面临的挑战?()
A.cheap flat rate
B.high date rate service
C.short latency
D.voice service in LTE
答案
参考答案:D
哪个不是operater面临的挑战?()
A.cheap flat rate
B.high date rate service
C.short latency
D.voice service in LTE
参考答案:D