单项选择题
A.Any one component can be eliminated to extinguish a fire
B.Any two components must be eliminated to properly extinguish a fire
C.Any three components must be eliminated to properly extinguish a fire
D.Ali four components must be eliminated to extinguish any fire
单项选择题 A fire can be extinguished by removing （）.
单项选择题 If a fire ignites in the engine room as a result of a high pressure fuel oil leak, you should FIRST （）.
单项选择题 While reading the muster list, you see that "three short blasts on the ships whistle and the same signal on the general alarm bells" is the signal for （）.