定量测算教育对经济增长的贡献率，是教育经济问题研究的难题之一。
It is one of difficult problems in educational economy to quantitatively calculate the contributive rate of education to economic growth.
定量测算教育对经济增长的贡献率，是教育经济问题研究的难题之一。
It is one of difficult problems in educational economy to quantitatively calculate the contributive rate of education to economic growth.
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