多余的信息，例如驾驶证和学校等级。
Superfluous % information; driving licence or school grades.
多余的信息，例如驾驶证和学校等级。
同时这还意味原本更优秀的学校却只能获得平凡的等级评价，因为他们的进步空间相对小得多。
It also meant that the better schools could receive mediocre grades becausethey were already performing well and had little room for improvement.
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