计算机的操作系统和“程序设计语言”属于（）软件。

操作系统是控制计算机的主要程序，它是应用软件。

能实现多道程序设计的计算机系统必须（）

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。

采用多道程序设计的主要优点是什么？

多道程序设计的主要优点是什么？

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。