The total quantity of oil discharge into the sea（）for existing tankers 1/15000 of the total quantity of the particular cargo or which the residue formed a part（）.

Repairing damage to the hull at or above the waterline reduces the threat of（）.

Every deliberate act of wrongdoing by the master or any of the crew against the ship or cargo，without the authorization or privity of the Shipowner or his agent，is（）.

A salvor may be（）the whole or part of the payment due under Salvage Convention to the extent that the salvage operations have become necessary or more difficult because of fault or neglect on his part or if the salvor has been guilty of fraud or other dishonest conduct.

During the watch keeping at sea, the engineer in charge should notify in the event of any serious occurrence or a situation where he is unsure of the action to take（）

Which change in the condition of the seas could indicate the formation of a tropical storm or hurricane several hundred miles from your location? （）

（） system is arranged to ensure that water can be drawn from any tank or the sea and discharged to any other tank or the sea as required to trim the vessel.

Course directed by the OSC or CSS to be steered at the beginning of a search is（）.

Course directed by the OSC or CSS to be steered at the beginning of a search is（）.

The objectives of the ISM Code are to ensure ①safety at sea②prevention of human injury or loss of life③avoidance of damage to the marine environment and to property

The objectives of（）are to ensure safety at sea, prevention of human injury or loss of life, and avoidance of damage to the environment,in particular to the marine environment and to property.

The prima facie rule that the law of the flag governs contracts of carriage by sea（）the paramount rule of the intention of the parties，which may be express，or implied from the circumstances of the sea.