n.地理学

Jason: Not price indexing her "National Geographics" again. 杰森：不会又是给全国地理杂志做索引吧。

Ben: Yes you do! Your birthday money from Grandma and Grandpa, it's in your second dresser drawer under your National Geographics! 本：你有的。你生日时外公外婆给你的钱，藏在你衣柜的第二个抽屉的旅游杂志下面。

Due to the rapid increase in technology, competitors are no longer restricted within local geographics, but are now global. 由于技术快速进步，竞争者不再局限于本地，而是全球化了。

Geographics Information System(GIS) is based on data models, generated from the real world.Views vary with the viewpoint of studying the real world. 数据模型是对客观世界现象抽象概括的结果，是建立地理信息系统(GIS)的基础，从不同角度观察世界产生的不同视图。

It was found that geograph, water and temperature were the main factors affecting the morphological differentiation by using the method of principal component analysis. 主成分分析得出形态分化是地理因子、水分因子、温度因子综合作用的结果；