（）, 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。

Linux和Unix是支持（）的操作系统。

UNIX/Linux操作系统的文件系统是结构（）

UNIX／Linux操作系统的文件系统是（）结构。

（）标准阐述了信息系统等级测评的测评过程，明确了等级测评的工作任务、分析方法以及工作结果等，包括测评准备活动、方案编制活动、现场测评活动、分析与报告编制活动，用于规范测评机构的等级测评过程。

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。