In the different years, the family 's expenditure on education and the family' s income have a positive coefficient and their elastic coefficient is more than 1.
不同年度家庭教育支出与家庭收入呈正向变动关系，二者的弹性系数大于1。
In the different years, the family 's expenditure on education and the family' s income have a positive coefficient and their elastic coefficient is more than 1.
不同年度家庭教育支出与家庭收入呈正向变动关系，二者的弹性系数大于1。
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