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。

为提高教师和学生的课堂交往，教师应该注意在教学领域中有效运用互动策略，其中（）是课堂交往中最主要的媒体，是师生双方情感交流的纽带。

良好的师生交往关系应该是（）。

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。

人们都有人际交往的心理需要，产生这种行为的动机主要与哪几个方面的心理需要有关（）