公文首页出现签发人的是（）

签发人应标注在法定公文的（）。

应在公文首页标注签发人的是（）

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.

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。

公文的密级分为绝密、（）和秘密三级，标注在公文首页左上角，印刷顺序号下方。

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。