单项选择题
A.3200ps/nm B.12800ps/nm C.800ps/nm D.400ps/nm
A.25GHz B.50GHz C.100GHz D.200GHz
A.±5GHz B.±10GHz C.±12.5GHz D.±20GHz
A.基于时分复用技术 B.可单纤双向传输 C.课双纤单向传输 D.基于波长复用技术
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