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.

在系统切换时，风险小、安全可靠，但人力和设备消耗较大的方式是（）

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。

在托收结算方式下，对出口人风险较大的方式是（）。

汇付方式是基于（）的结算方式。

汇付方式是基于（）的结算方式。

汇付方式风险较大，但手续简便。

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。