單項(xiàng)選擇題Enhanced procedures concerning the exercise of () have been developed to allow intervention in the ease of deficiencies deemed to pose a danger to persons, property or the environment.

A.port state control
B.flag state control
C.fire and boat drill
D.Safety inspection


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3.單項(xiàng)選擇題As for turbine oil, contact with water in the form of steam will be inevitable so good () properties will be essential.

A.defrosting
B.de-oiling
C.demulsifying
D.dehumidifying

4.單項(xiàng)選擇題Any carbon built up on surfaces must be washed away by () additives and held in suspension by a () additive.

A.dispersant;detergent
B.detergent;dispersant
C.dispersant;dispersant
D.detergent;detergent

5.單項(xiàng)選擇題The () of an oil refers to its ability to mix with water and then release the water in a centrifuge.

A.oxidation resistance
B.carbon-forming tendency
C.demulsibility
D.acidity