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【单选题】
某楼层配线间连接数据信息点150点,数据干线采用光缆,按照每台数据交换机(按照24口交换机计算)设置1个主干端口,在考虑备份,干线应配( )芯光纤。A.
12.0
B.
14.0
C.
16.0
D.
18.0
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