单项选择题
A.bow mooring／stern line
B.forward spring／after spring
C.forward breast rope／forward spring
D.slip rope／stern line
单项选择题 The wooden plug inserted in the vent of a damaged tank should be removed if you are going to （）.
单项选择题 The two courses of action if the underwater hull of a ship is severely damaged are to plug the openings and to（）.
单项选择题 The stability which remains after a compartment is flooded is called（）.