ifo Education Survey (2015) - version 2 ifo Bildungsbarometer (2015) - Versi...
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The ifo Education Survey is an annual representative public opinion poll which surveys the adult German population since 2014. The ifo Education Survey covers a wide range of...
ifo教育调查（ifo Education Survey）是一项具有代表性的年度民意调查，自2014年起面向德国成年民众开展调研。该调查涵盖广泛的……
