單項(xiàng)選擇題Small hull leaks can be temporarily repaired by（）.
A.parcelling
B.parbuckling
C.caulking
D.seizing
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1.單項(xiàng)選擇題The control lever for the mechanical disengaging apparatus in a lifeboat shall（）.
A.be painted bright red
B.be secured to a permanent part of the lifeboat structure
C.have the area surrounding the lever painted white
D.All of the above
2.單項(xiàng)選擇題The inner bottom is the（）.
A.tank top
B.compartment between the tank top and shell of the vessel
C.inner side of the vessel's shell
D.space between two transverse bottom franges
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