（）, 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 （）.

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

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。

在计算机局域网中，以数据共享为目标，需要将多台计算机共享的数据存放于一台被称为（）的计算机中

在计算机局域网中，以文件数据共享为目标，需要将多台计算机共享的文件存放于一台被称为（）的计算机中。

使以太网从局域网向城域网领域渗透的以太网技术是（）。

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。