祝畹瑾编著的《社会语言学概论》交际能力的内容包括以下三个方面：（）

本课程教学辅导栏目提供了语言学概论网络课件，课件一共包括（）个栏目

登录电大在线进入语言学概论课程端，进入《语文大观园》论坛，打开“语言杂谈”帖子，里面的跟帖《联合国工作语言介绍》介绍了联合国除汉语以外其它五种工作语言，即英语、俄语、法语、西班牙语、阿拉伯语，请你任选一种语言介绍，简化缩写为100字左右的介绍文字。

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.

When loading or discharging dry mud or cement，crew members should use goggles and（）.

Effects which are dutiable or subject to prohibitions or restrictions should be declared in （）.

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。