这套教材共分三种，分别面向小学生、初中生和高中生。
Three sets of textbooks have been published, one each for elementary, middle and high-school students.
小学生必须跑1公里(约0.621英里)，初中生要求跑1.5公里，高中生和大学生的任务则是2公里。
Primary schoolchildren must run a kilometre (0.621 miles), junior high school students 1.5km and senior high and college students 2km.
初中生的学习态度和班级气氛要好于高中生。
The learning attitude and class atmosphere of Junior high school students are better than those of senior high middle school students.
初中生的学习态度和班级气氛要好于高中生。
The learning attitude and class atmosphere of Junior high school students are better than those of senior high middle school students.
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