A.稀疏波分復(fù)用 B.密集波分復(fù)用 C.波分復(fù)用 D.SDH波分復(fù)用
A.1T2R 6載波 1*80W B.2T2R 6載波 2*80W C.1T2R 8載波 1*80W D.2T2R 8載波 2*80W
A.20 B.4 C.8 D.10