Upper secondary level trainees taking a distance course, in the principal’s school units, percentage (%)
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资源简介：
The proportion of students at upper secondary level who take a distance course refers to course participants in the principal’s schools.
高级中等教育阶段（upper secondary level）修读远程课程（distance course）的学生占比，其统计口径为校长所在学校的课程参与者。
