（）, 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。

现行ISO9000族标准的核心标准中，表述质量管理体系基础知识并规定质量管理体系术语的标准是（）。

F1系列PLC—OR指令表示（）。

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。

企业标准体系可由基础标准体系、管理标准体系、（）三大子体系组成，并在此基础上形成岗位工作标准体系。

企业标准体系可由基础标准体系、管理标准体系、服务标准体系三大子体系组成，并在此基础上形成（）。