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
单项选择题 On a rigid liferaft which is equipped with all of the required equipment you may NOT find a（）.
单项选择题 Oil fires are best extinguished by（）.
单项选择题 Multiple fire pumps may be used for other purposes provided that one pump is（）.
