趋势分析属于预测技术，其目标是从过去和现在已知情况出发，利用一定技术方法，去分析设备的正常、（）和故障3种状态，（）故障的发展过程，有利维修决策和过程控制。

操作技能考核试题的基本内容包括准备标准、考核要求、区分与评分标准。

可以在（）阶段采用Make-or-buy决策分析。

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。

加油站经理认证考核（试）包括理论知识考试和实操技能考核。其中理论知识考试（）分以上为合格，实操技能考核（）。

通过分析操作技能形成过程中的动作特点，一般认为操作技能可以分为（）。

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。