到底是定语从句还是比较状语从句阿,各位英语达人帮忙分析下：

谢谢 yueheng1959 ，我也这么理解，可有的书上说这个是 主语 + 谓语 + 形容词 / 副词最高级 +（名词）+ 范围 结构的比较状语从句，我不知道该怎么分析了 This coat is the most expensive that I’ve ever bought. She is the most active girl in our class. He worked hardest in the workshop. She bought the least expensive towels that she could find.