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（）.

Effects which are dutiable or subject to prohibitions or restrictions should be declared in （）.

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。

地理实体的属性数据项按照地理实体的自然属性、社会属性和管理属性分哪三类数据项？（）

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。

地理信息系统GIS是多种学科交叉的产物，它以地理空间数据为基础，采用地理模型分析方法，适时地提供多种空间和动态的地理信息，是一种为地理研究和地理决策服务的计算机技术系统。（）