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 （）.<br>A:darkness<br>B:daylight<br>C:simulated engine-room<br>D:all of the above

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

出自：海船船员证

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