单项选择题
8波和80波系统的通道频率间隔分别为()
A.200GHz,100GHz
B.100GHz,50GHz
C.200GHz,50GHz
D.50GHz,100GHz
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单项选择题
A.200GHz,100GHz
B.100GHz,50GHz
C.200GHz,50GHz
D.50GHz,100GHz
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