单选题The main advantage of a Chinese stopper over the one line stopper is that it（）.Awill not jam on the mooring lineBis strongerCis easier to use when under heavy tensionDis safer to use when under heavy tension
单选题
The main advantage of a Chinese stopper over the one line stopper is that it（）.
A
will not jam on the mooring line
B
is stronger
C
is easier to use when under heavy tension
D
is safer to use when under heavy tension
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