单项选择题
A.general alarm and fire control plans
B.muster stations and duties of individual
C.patrol system
D.All of the above
单项选择题 The fire-fighting practical training should take place in spaces which provide truly realistic training conditions, and whenever possible and practical should be carried out in （）.
单项选择题 The main causes of fire on board ships are （）
单项选择题 The basic training in fire prevention and fire fighting should include the theoretical elements which should cover （）.