矿物润滑油、合成润滑油是（）

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（）.

（）, or drum is used for hauling in or letting out the wires or ropes which will fasten the ship to the shore.

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.

The （） is used for hauling in or letting out the wires or ropes.

Vessels must be（）valid certificate of nationality or certificated of registry or license.

When loading or discharging dry mud or cement，crew members should use goggles and（）.

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。

属于船舶动力机械所使用的润滑油是（）①气缸油、透平油；②液压油、冷冻机油；③润滑油脂。

冷冻机油与液压油及其他设备的润滑油相比，最主要的特点是：（）。

冷冻机油与其它设备滑油和液压油相比，最主要的特点是：（）。

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。