榜样树立的作用体现了教育群体中个体心理效应中的（）

消费者群体一般有以下分类：（）群体和（）群体；所属群体和参照群体；（）群体和（）群体。

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.

参照人群有：（）、榜样群体。

按消费者与群体关系状况，消费群体分为特殊群体与参照群体

把社会群体分为所属群体与参照群体，是根据（）的标准。

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。