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（）.

Effects which are dutiable or subject to prohibitions or restrictions should be declared in （）.

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。

在互斥方案比选中，差额投资回收期是（）

在互斥方案比选中，差额投资回收期是（ ）。

分析指标的确定，一般是根据项目的特点、不同的研究阶段、实际需求情况和指标的重要程度来选择，与进行分析的目标和任务有关。如果主要分析产品价格波动对方案超额净收益的影响，则可选用（）作为分析指标。

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。