在认识和研究地理科学的过程中 ,最常见的、最简练的、生动直观的表示方法莫过于有各种各样的图表。地图作为一种基础工具以其内涵丰富、生动形象 ,被誉为最直观、最简明的地理“书” ,示意图则以其组成简单、形式多样、易于操作的特点 ,深受地理教育工作者的喜爱。曲线图就是 In the process of recognizing and studying geography science, the most common, concise, vivid and intuitive way to express it is to have a variety of charts. As a basic tool, maps are rich in content and lively. They are regarded as the most intuitive and concise geographical “books.” The maps are characterized by their simple composition, diverse forms, and easy operation. favorite. The graph is