【单选题】
光缆弯曲半径应大于光缆外径的( )倍,施工中(非静止状态)应大于( )倍.___
A. 15、20
B. 30、35
C. 25、30
D. 20、25
E.
F.
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___
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【判断题】
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13
A. 对
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