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.

When loading or discharging dry mud or cement，crew members should use goggles and（）.

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。

以下不属于家禽泄殖腔组成部分的是（）。

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。

从背外侧通入泄殖腔的是（）。

为便于通行车辆，在门口外侧须设置坡道，若有铁轨通入，则坡道设在两铁轨中间。

泄殖腔被（）分隔为两部分，腹侧份称（），主要分化为（）和（），背侧份称（），分化为（）和（）。