正确答案: ABCD
调度电话 无绳电话 移动电话 移动数据
题目:移动通信业务按通信方式与服务对象划分,主要有无线寻呼和()等业务。
解析:ABCD
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学习资料的答案和解析:
[多选题]Using fiber optic cable, optical communications have enabled telecommunication (93) to be made over much greater distances and (94)much lower levels of(95)in the transmission medium and possibly most important of all, optical fiber communications have enabled much higher data rates to be accommodated
links
lines
解析:A,A,B
[单选题]把线上商务和线下商务结合起来的电子商务模式是( )。
O2O