（）, 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.

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。

【参考范例九】Education Are you with a job or are you studying?

参考咨询体系的构成要素很多，主要包括以下6个方面：（）、服务内容、 参考咨询员、参考信息源、参考咨询平台、咨询规范。

参考咨询体系的构成要素很多，主要包括以下6个方面：（）、服务内容、参考咨询员、参考信息源、参考咨询平台、咨询规范。

参考咨询的类型包括：事实、数据咨询、（）、专题性咨询。

参考咨询的概念。

网络合作式的参考咨询服务模式特点是其用户、咨询馆员和参考资源都是分散的。

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。