（）, 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。

将“立场、观点、方法”略写为“立3”是运用了()略写法。

()运用了同义词和近义词略写法。

根据同义词和近义词略写法，快速书写时可选用()词写。

根据同义词和近义词略写法，快速书写时可选用（ ）词写。

按照双音节词略写法。“安危”可以写成（）。

下面属于双音节的单纯词略写法的是（ ）。

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。