单项选择题
Laying out a line in successive circles flat on deck with the bitter end in the center is known as（）.
A.coiling B.faking C.flemishing D.lining
单项选择题 In plugging submerged holes on a vessel，rags，wedges，and other materials should be used in conjunction with plugs to（）.
单项选择题 By definition，a spar deck is the（）.
单项选择题 Bulkheads which form part of the tanks on a vessel are stiffened to withstand（）.
