简述布尔算符（OR）的作用。

简述标志变异指标的意义和作用。

简述直剪仪的优缺点。【三峡大学2006年研究生入学考试试题】

简述继承性和变异性的意义。

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.

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。

简述遗嘱继承和法定继承的区分。

简述仓储管理现代化的意义和作用。

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。

简述开展大学生就业指导的意义。