简述大学生人际交往的特点，大学生人际交往的影响因素以及大学生人际交往的原则和技巧。

人际影响的技巧包括（）。

以下哪项不属于人际影响的技巧（）

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。

大学生的社会知觉，就是大学生对社会客体的感知和认识过程，包括对他人的知觉、自我知觉、角色知觉和人际知觉。

大学生在人际交往中，为了提升自己的交往能力，应掌握哪些人际交往的技巧？

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。