单选题When lowering lifeboats in heavy seas，a good practice is to rig frapping lines（）.Aon only the forward fallsBon only the after fallsCwith a lead of about 45 degrees to the boatDfrom the falls to the main deck of the vessel
单选题
When lowering lifeboats in heavy seas，a good practice is to rig frapping lines（）.
A
on only the forward falls
B
on only the after falls
C
with a lead of about 45 degrees to the boat
D
from the falls to the main deck of the vessel
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