单项选择题
A.oil leakage in engine-room B.hot work (welding, cutting, etc) C.static electricity D.all of the above
The basic training in fire prevention and fire fighting...
单项选择题The basic training in fire prevention and fire fighting should include the theoretical elements which should cover （）.
A.the three elements of fire and explosion B.lower and upper flammable limits C.classification of flies and applicable extinguishing agents D.All of the above
单项选择题The basic training in fire prevention and fire fighting should include the practical elements which should allow the trainees to acquire the ability to （）.
A.use self-contained breathing apparatus B.use various types of portable fire extinguishers C.effect a rescue in a smoke-filled space wearing breathing apparatus D.All of the above
STCW shall apply to seafarers（） on board seagoing ships...
单项选择题STCW shall apply to seafarers（） on board seagoing ships entitled to fly the flag of a Party.
A.served B.serving C.surveyed D.surveying
