单选题The bosun has thrown the liferaft into the water before abandoning the vessel. The operating cord（）.Aserves as a sea painterBdetaches from the liferaft automaticallyCis used to rig the boarding ladderDis cut immediately as it is of no further use
单选题
The bosun has thrown the liferaft into the water before abandoning the vessel. The operating cord（）.
A
serves as a sea painter
B
detaches from the liferaft automatically
C
is used to rig the boarding ladder
D
is cut immediately as it is of no further use
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