某摄影用品公司经营照相机、摄影器材、冲洗药品等，其中照相机就是一个产品线，在相机这类产品中，尼康D80相机就是一个产品项目。

某摄影用品公司经营照相机、摄影器材、冲洗药品等，其中照相机就是一个产品线，在相机这类产品中，海鸥DF相机就是一个产品项目。

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。

目前数码相机最常采用的记录，储存影像的部件是（）

一下哪种不是数码相机常用储存卡（）

土家族一下哪种不是跳丧舞的格局（）。

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。