【单选题】
FTTH装机过程中,引入壁龛箱、过路箱的竖向暗管应安排在箱内一侧,水平暗管可安排在箱体的中间部位,暗管引入箱内的长度不应大于( )___
A. 5-10mm
B. 10-15mm
C. 1-5mm
D. 15-20mm
E.
F.
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答案
B
解析
暂无解析
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