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 （）.

The（）may examine or re-examine the goods or take samples from them straightaway in the absence of the consignee or the consignor whenever it considers this necessary.

（）are liable to be stoten, pilfered or may damaged due to improper handing or stowage.

Banks have no liability for any delay or loss caused by postal or telex failure.

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。

建筑工程经济与管理课程是研究建筑企业管理（）、（）、（）综合性学科

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。

原南县第二建筑工程公司是原南友谊酒店扩建项目的总承包商，原南县大政建筑工程公司和原南县大发建筑工程公司是部分工程的分包商。原南县第二建筑工程公司的董事长是张三，负责该项目施工的项目经理叫李四，王五是原南县第二建筑工程公司的安全科科长。施工现场的安全生产由（）负责。