心理正常和心理异常并无明显的界限。

异常心理与正常心理之间的差别是绝对的。

从人的心理与精神的角度分析健康问题，可以把人分为心理正常与心理异常两大类，心理正常就是心理健康，心理不健康就是心理异常。

异常是相对正常而言的，异常心理是指偏离正常的心理。

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。

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。

心身医学研究正常和异常的心理与生理之间的相互作用，是一个涉及医学、心理学和社会学的交叉学科。