單項(xiàng)選擇題
A.3 B.4 C.8 D.9
A.2000 B.8000 C.500 D.125
A.VC-3 B.VC-12 C.VC-2 D.VC-4
A.155.520Mb/s B.466.560Mb/s C.622.080Mb/s D.2488.320Mb/s
A.1985 B.1970 C.1988 D.1990
A.0.65μm B.0.85μm C.1.31μm D.1.55μm
A.G651 B.G652 C.G654 D.G655
A.單模 B.雙模 C.多模 D.多組份
A.ODN B.OLT C.ONU D.ADM
A.155M/622M B.2.5G/1.25G C.1.25G/1.25G D.2.5G/2.5G
A.1310 B.1490 C.1550 D.1510