全称判断和单称判断的主项都是周延的。

在编写程序时尽量减少使用否定的逻辑判断条件。

负判断的等值判断与负判断的支判断之间为（）。

性质判断包括如下种类：全称肯定判断、全称否定判断、特称肯定判断、特称否定判断、单称肯定判断和单称否定判断。

否定判断是简单判断，不同于负判断。

单称判断包括单称肯定判断和单称否定判断。

"有的工人是青年"这一判断的负判断是（），与这一负判断等值的性质判断是（）。

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。

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。