升级制度
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It is also the historical backgrounds for forming the school-upgrading system in Northern Song Dynasty. Part Three.
这正是北宋学校升级制度出现的历史前提和时代背景。
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Of course, we should consider pre-school for all children, upgrading our infrastructure and transforming our educational system.
FORBES: SOTU Innovative, Aspirational, Less Partisan - But Math Doesn't Work
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