A.80% B.20% C.50% D.40%
A.主控板 B.傳輸板 C.載頻 D.合路器
A.12 B.6 C.4 D.2
A.FCCH,SCH,AGCH B.SDCCH,TCH,SACCH C.RACH,F(xiàn)ACCH,TCH D.BCCH,SDCCH,SACCH
A.15 B.9 C.8 D.4