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 （）.

A.darkness
B.daylight
C.simulated engine-room
D.all of the above

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The main causes of fire on board ships are （）

A.oil leakage in engine-room
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The basic training in fire prevention and fire fighting should include the theoretical elements which should cover （）.

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