The CDU defends the traditional three-tier system in which children are separated by ability at age ten; the Greens want them to spend more time in the same schools.

基民盟支持传统的三阶段式教育体系，这种体系中孩子们将在10岁时按照能力分班；绿党则希望孩子们可以在同一个班级待更长的时间。

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A new system with three groups was tested, and the second group (Risser 0 with closed triradiate cartilage and Risser 1) was the best predictor of a digital skeletal age score of between 400 and 425.

一个新的系统分三组进行了测试，第二组(里塞尔0与封闭三叶形软骨和里塞尔1)能够最佳预测400至425之间的数字骨龄评分。

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A-level system, which restricts students over the age of 16 to studying just three or four subjects of their choice.

ECONOMIST: The gold standard loses its gleam