结合实例论述中学物理规律教学的主要环节

中学物理教学论是以国家的教育方针为依据，以辩证唯物主义为指导，系统地研究中学物理教学现象与问题，揭示中学物理教学规律，指导中学物理教学（）的一门理论兼应用的学科。

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.

When loading or discharging dry mud or cement，crew members should use goggles and（）.

Effects which are dutiable or subject to prohibitions or restrictions should be declared in （）.

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。

中学物理课堂教学的基本课型主要有概念课、（）、实验课、习题课、复习课、探究课等。

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。