把GIS分为专题地理信息系统和综合地理信息系统是按（）。

是否以为人民服务作为道德建设的核心，是社会主义道德区别于其它社会形态道德的显著标志。

地理信息系统GIS的最基本职能是( )。

根据管理信息系统的定义，可以总结出管理信息系统建设的两个最主要的内涵，即管理信息系统是一个（）；管理信息系统是一个（）。

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。

（）是教师教育区别于其它教育的重要标志。

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。