结构化综合布线系统分为六个子系统，其中水平子系统的作用是（ ），干线子系统的作用是（ ）。
问题1选项
A.实现各楼层设备间子系统之间的互联
B.实现中央主配线架和各种不同设备之间的连接
C.连接干线子系统和用户工作区
D.连接各个建筑物中的通信系统
问题2选项
A.实现各楼层设备间子系统之间的互联
B.实现中央主配线架和各种不同设备之间的连接
C.连接干线子系统和用户工作区
D.连接各个建筑物中的通信系统
正确答案及解析
正确答案
解析
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