单项选择题
A.are required to go to your life-raft
B.are dismissed from drills
C.should point to the man overboard
D.should start the fire pump
单项选择题 The spreading of fire as a result of heat being carried through a vessels ventilation system, is an example of heat transfer by （）.
单项选择题 Combustible material stored in a compartment adjacent to a compartment where there is a fire may be ignitedThis ignition can occur by （）.
单项选择题 The rate of expansion of heated fuel oil varies with the （）.