大学生与职业人的社会角色不同，不包括（）。

可登录并使用公司客户营销移动展业的人员角色包括（）。

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.

电子商务各参与方中（）扮演着介绍、促成和组织者的角色。

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。

移动商务WAP平台的功能主要有（）百度百科移动商务知识

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。

我国大学生参与科研项目的主要方式不包括（）。