公文写作不同于其他文种的写作，其主要特点包含（）。

公文写作要求选择合适的文种格式，下面公文标题文种使用错误的是( )。

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.

公文写作不同于其他文种的写作，其主要特点是（）。

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。

面料经纬向判定，对于有布边的面料，与边平行的方向为（）（经向or纬向）

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。

布尔逻辑具体检索时，是通过三个布尔运算符来实现其功能的：AND、OR、（）。