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。

投资回收期也称返本期，是反映技术方案投资回收能力的重要指标，分为（ ）。

在投资项目经济评价中进行敏感性分析时，如果要分析投资大小对方案资金回收能力的影响，可选用的分析指标是（ ）。

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。

反映开发项目投资回收能力的重要指标是（）。

（）是反映开发项目投资回收能力的重要指标。

反映开发项目投资回收能力的重要指标为( )。