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。

在被连接件中，（）常用于有一个零件较厚不便于打通孔的场合。

螺纹连接的类型中，适用于常拆卸而被连接件之一较厚的是（）。

普通螺钉连接常用于被连接零件之一较厚，受力不大且不经常拆装的场合。

（）多用于被连接件之一较厚而不宜使用螺栓连接，或因经常拆卸不宜使用螺钉连接的场合。

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。