输出继电器（OR）通过一对（）触点将PLC的控制信号传递给负载。

中国项目管理知识体系以项目生命周期为主线，将项目管理知识领域分为（）个模块。

世界卫生组织将冠心病分为（　　）。

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。

在欧洲，它将电磁兼容性等级分为三级（）。

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。

三级课程管理是学校、老师、学生三级共同管理的基础教育课程体系。