作图题：请画出线路电流保护回路图。
参考答案：
见图E-83
简述汉大赋的特点
Two mooring lines may be placed on the same bollard and either one cast off first if（）.
A.the eye of the second line is dipped
B.the mooring lines are doubled
C.the bollard has two horns
D.one of the lines is a breast line
