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er ci han shu de ying yong
Author(s): 
Pages: 20-24
Year: Issue:  36
Journal: Junior Middle School Students

Keyword:  二次函数应用函数命题数学模型变化规律数量关系现实世界;
Abstract: 二次函数是刻画和研究现实世界数量关系及其变化规律的数学模型.生活中的问题历来是二次函数命题的重点.
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