题目内容

All barriers to the free flow of goods and services between member countries are removed, and a common trade policy toward nonmembers is established in a free trade area.( )

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Which of the following is not an example of a primary activity?()

A. Logistics
B. Marketing and sales
Customer service
D. Production

数据是信息的表达,信息是数据的内涵。()

地理空间分析的三大基本要素是空间位置、属性以及时间。()

对象模型具有明确便捷和独立地理现象。()