Two mooring lines may be placed on the same bollard and either one cast off first if（）.<br>A:the eye of the second line is dipped<br>B:the mooring lines are doubled<br>C:the bollard has two horns<br>D:one of the lines is a breast line

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

出自：海船船员证

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