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.

与北曲杂剧相比，南戏在体制结构上有何特点？

什么是生物氧化？生物氧化有何特点？

何谓生物氧化？有何特点？

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。

动物试验的特点有何和基本要求有哪些？

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。

什么是食品安全？我国食品安全现状如何？食品安全监管体制有何特点？