类型一:曲线图式曲线图通常用于表示事物的变化趋势,同学们在做这类题时应认真观察坐标系所显示的数据信息,并且密切注意交汇在坐标横轴和纵轴上的数字及单位。请看下面一篇实例。某县主要的几种粮食品种市场价格变化曲线图,请根据图中所给信息(只需作宏观上的描述,可 Type 1: Curve Graphs Graphs are usually used to represent the changing trend of things. Students should carefully observe the data information displayed in the coordinate system when doing such questions, and pay close attention to the numbers that intersect on the horizontal and vertical axes of the coordinates. And units. Please see the following example. For the price curve of some major grain varieties in a county, please refer to the information given in the map (only a macro description is required).