Unless it is unavoidable do not jump from a place higher than 5 meters into the water. Try to minimize the shook of sudden cold immersion. When should the said caution be taken into account?（）.<br>A:The mariners try to put out fire on board of vessel<br>B:The people on board try to survive themselves from a ship in perils<br>C:The salvors take actions to rescue the survivors at sea<br>D:The pilot come on board from his boat in bad weather

Unless it is unavoidable do not jump from a place higher than 5 meters into the water. Try to minimize the shook of sudden cold immersion. When should the said caution be taken into account?（）.
A:The mariners try to put out fire on board of vessel
B:The people on board try to survive themselves from a ship in perils
C:The salvors take actions to rescue the survivors at sea
D:The pilot come on board from his boat in bad weather

出自：海船船员证

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