6OECD. PISA 2012 Assessment and Analytical Framework:Mathematics[M].Reading,Science,Problem Solving and Financial Literacy,2013.124,160,103.
7N. Verhelst,Piet Van Avermaet UGent,S.Takala,N.Figueras B.North. The Common European Framework of Reference for Languages:learning[M].teaching,assessment,2009.46,48-49.