1. 小作文
　　小作文曲线图三根线描述三种图书children's books, educational books和adult fiction2002-2006的销量。
　　2. 大作文
　　大作文抽象题类似于以前的老龄化社会和婴儿潮的结合。 In some cultures the old age is more valued,while in some cultures youth is more valued. Discuss双边。