单项选择题
An anchor winch should be equipped with mechanical brakes capable of holding（）.
A.half the breaking strength of the mooring line B.the full breaking strength of the mooring line C.the maximum expected tension of the mooring line D.50% over the working tension of the mooring line
单项选择题 After deploying the anchor，a permanent chain chaser is（）.
单项选择题 A whipping on a fiber line（）.
单项选择题 A whipping is（）.
