问题
单项选择题
导线各边的长度在特殊情况下,应()。
A.不大于200m,不宜小于50m
B.不大于250m,不宜小于50m
C.不大于350m,不宜小于50m
D.不大于350m,不宜小于80m
答案
参考答案:C
导线各边的长度在特殊情况下,应()。
A.不大于200m,不宜小于50m
B.不大于250m,不宜小于50m
C.不大于350m,不宜小于50m
D.不大于350m,不宜小于80m
参考答案:C