（）, 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 （）.

现代广告策划有哪些主要特征？广告策划应坚持哪些主要原则？

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。

建设工程项目实施阶段策划中，属于经济策划主要工作的是（　）。

建设工程项目决策阶段策划中，属于经济策划主要工作内容的有()。

大学生体育学习锻炼和保健的原则主要有（）、（）、（）、全面锻炼与发展原则。

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。