单项选择题
Small hull leaks can be temporarily repaired by（）.
A.parcelling B.parbuckling C.caulking D.seizing
单项选择题 The control lever for the mechanical disengaging apparatus in a lifeboat shall（）.
单项选择题 The inner bottom is the（）.
单项选择题 The last of an anchor cable is usually painted（）.
