手机在占用下列哪个信道通话时,下行一定是没有进行功率控制的?()
A.BCCH
B.SDCCH
C.TCH/F
D.TCH/H
参考答案:A
用介词 near, from, with 或 in 填空。
1. Can you play____me?
2. I live____a house.
3. We can play____the park.
4. It's far____my school.
5. I live____the movie theatre.
什么是“深埋接地体”?