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。

池塘中常见的麦穗鱼属（）。

发现池塘中鱼类浮头后采取的解救措施（）。

池塘水温剧烈变化，易使鱼类（），严重时死亡。

池塘水体中消耗氧气最大的是鱼类和水生生物的呼吸。（）

借用生物学中“分类学”概念，在教育领域建立了“教育目标分类学”的著名教育家是（）

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。