简述布尔算符（OR）的作用。

简述五代时期中枢机构的名称及其职责。

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.

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。

简述渠道权力的含义及其来源。

简述马克思主义政治经济学的理论来源及其代表人物。

简述马克思主义科学体系的组成部分及其直接理论来源。

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。