简述布尔算符（OR）的作用。

OR指令的作用是: 。( )

教育目的的导向作用仅针对受教育者，对教育者不具有导向作用。

Every deliberate act of wrongdoing by the master or any of the crew against the ship or cargo，without the authorization or privity of the Shipowner or his agent，is（）.

（）, 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.

教育目的对整个教育工作具有导向作用、激励作用和（）。

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。

要充分发挥党校、行政学院、干部学院在领导干部保密教育中的主阵地、主渠道作用，利用党委（党组）理论中心组学习、保密法制讲座和培训、保密知识考试考核等形式开展保密教育。

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。