单项选择题

On a ship，a fire pump may be used for other purposes if（）.

A.the other services are run off a reducing station with a pressure gage
B.a separate fire pump is available for use on the fire main
C.all other services are operated by a manifold near the pump
D.All of the above

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On a rigid liferaft which is equipped with all of the required equipment you may NOT find a（）.

A.boathook
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Oil fires are best extinguished by（）.

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B.kept available for use on the fire main at all times
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