Tugs sometimes shackle a length of chain in the towline in order to（）.<br>A:take the wear should the towline drag bottom<br>B:assure that if the towline is overstressed it will part close to the bridle<br>C:prevent the towline from whipping should it part<br>D:put spring in the towline

Tugs sometimes shackle a length of chain in the towline in order to（）.
A:take the wear should the towline drag bottom
B:assure that if the towline is overstressed it will part close to the bridle
C:prevent the towline from whipping should it part
D:put spring in the towline

出自：海船船员证

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