They were simply told, "These are the 'A-students,' these are the 'D-students.'" And that's how they went about teaching them and treating them.
Судлаачид зүгээр л "Энэ бол А анги",  "Энэ бол D анги" гэж хэлсэн. Тэд тэгж л зааж, харьцдаг байсан.