Black Friday: lifetime access is on a special offer in the app, until November 30. Black Friday: special offer on lifetime access, until November 30. Download
이 평가법은 학생들의 성취도를 측정하는 데 사용됩니다.i pyeonggabeob-eun haksaengdeul-ui seongchwido-reul cheugjeonghaneun de sayongdoemnida.This evaluation method is used to measure students' achievements.