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 （）.

利他行为的产生是由很多因素引起的。例如，人们的价值观念、社会规范和个人信仰等等，都会影响人们的利他行为。单就社会规范来说，就有（）、（）和（）等会促进人们去帮助他人。

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。

影响消费者购买行为的心理因素包括文化、社会阶层、机关群体、家庭、个人等因素。

不同社会阶层消费者的心理与行为差异。

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。