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。

由于视距测量距离比钢尺量距来得快，所以一般精度较高的距离测量都采用这种方法。

视距测量方法的量距精度一般高于钢尺量距方法。

钢尺量距为了防止丈量错误和提高精度，应进行往返测量，返测时应重新进行（）。

钢尺量距测量中，属于测量工具产生的误差是（）。

常用的距离测量方法有钢尺量距、（）和电磁波量距。

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。