单项选择题

Which space(s) on your cargo vessel must have a fire detection system?（）

A.Any compartment containing explosives
B.Any compartment adjacent to one containing explosives
C.Enclosed spaces which are specially suitable for vehicles
D.All of the above

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Which precaution should be taken when testing a line throwing gun?（）

A.Never remove the line from the rocket
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C.Wear asbestos gloves
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Which portable fire extinguisher should be used on a class C fire on board a vessel?（）

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