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线段图就是将抽象的数量关系,通过一条、二条或多条线段表现出来。从线段图的结构直观地发现数量之间的内在联系,是问题解决的一种有效的方法。
Line graph is the number of abstract relationship, through one, two or more lines show. It is an effective way to solve the problem by finding out the intrinsic relationship between quantity intuitively from the structure of the line graph.