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.

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。

某生产活动存在外部经济时，其产量（）帕累托最优产量。

按照帕累托的理论，将符合帕累托最优实现条件的切点连接起来的线，称为效率线。

按照帕累托的理论，将符合帕累托最优实实现条件的切点连接起来的线，称为效率线

某生产活动存在外部经济时，其产量水平（）帕累托最优产量。

某生产活动存在外部不经济时，其产量（）帕累托最优产量。

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。