我国采用的光同步数字速率等级是()
A.2Mb/s,8Mb/s,34Mb/s,140Mb/s B.1.5Mb/s,6.3Mb/s,45Mb/s,274Mb/s C.155Mb/s,622Mb/s,2.5Gb/s,10Gb/s D.52Mb/s,155Mb/s,466Gb/s,622Mb/s……10Gb/s正确答案C
我国采用的光同步数字速率等级是()
A.2Mb/s,8Mb/s,34Mb/s,140Mb/s B.1.5Mb/s,6.3Mb/s,45Mb/s,274Mb/s C.155Mb/s,622Mb/s,2.5Gb/s,10Gb/s D.52Mb/s,155Mb/s,466Gb/s,622Mb/s……10Gb/s正确答案C