备课是教学过程的核心环节，也是首要环节。

翻译：With Average or With Particular Average（WA or WPA）（）

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。

高校的教学活动主要由（）、（）、（）、科研和毕业设计（论文）等几个环节组成。课堂教学的基本环节包括备课、上课和课后总结等。毕业设计或毕业论文是高校整个教学的过程的最后一个基本环节。

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。