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。

AutoCAD2002图形文件和样板文件的扩展名分别是（）

AutoCAD 2008的图形文件和样板文件的扩展名分别是（）。

AutoCAD图形文件和样板文件的扩展名分别是（）。

AUTOCAD2002图形文件和样板文件的扩展名分别是：

开始画一幅图时可以使用图形样板，AutoCAD的图形样板文件用（）作为扩展名。

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。