单选题The main reason a long towline is used during an oceantow is that（）.Aa margin of safety is provided should the line partBthe towline will wear more evenlyCthere will be less stress on the towlineDa slight increase in speed will be realized
单选题
The main reason a long towline is used during an oceantow is that（）.
A
a margin of safety is provided should the line part
B
the towline will wear more evenly
C
there will be less stress on the towline
D
a slight increase in speed will be realized
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