为资源指派权限时，管理员应将哪些权限指派给安全组而非个别用户。

为资源指派权限时，管理员应将哪些权限指派给安全组而非个别用户。

输出继电器（OR）通过一对（）触点将PLC的控制信号传递给负载。

服务器是通过网络操作系统为网上工作站提供服务及共享资源的计算机设备。

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。

（）是指通过网络将大量计算机连接在一起，以获取极高的运算能力、广泛的数据共享以及实现分散资源管理等功能为目的的一种操作系统。

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。