---

What is the point of using a combiner? （）
A:Up to four sites can share one PCM link.
B:Several TRXs can share one antenna system.
C:The mobile can listen to two base stations at the same time.
D:Only one base station is needed per site.
E:Sending and transmitting can be performed from the same antenna.

---

出自：中国移动网络维护生产岗位

显示答案