（）, 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。

多媒体技术能处理的对象包括字符、数值、声音和（）数据。

（），计算机在数据处理技术上的突破，把计算机应用从单纯的数值运算扩展到数据处理的广阔领域。

二进制是计算技术中广泛采用的一种数制。是用（）两个数码来表示的数据

（），计算机在数据处理技术上的突破，把计算机应用从单纯的数值运算扩展到数据处理的广阔领域。

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。