问题
单项选择题
架空线路选择电杆,在地势平坦的地区10kV线路一般采用高度为()的水泥杆
A、8m
B、9m
C、10m
D、12m
答案
参考答案:D
架空线路选择电杆,在地势平坦的地区10kV线路一般采用高度为()的水泥杆
A、8m
B、9m
C、10m
D、12m
参考答案:D
完形填空。 | ||||
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