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? Pwd= 1234 extraction code: 1234 K 12 Education is a comprehensive education system, covering all stages from kindergarten to high school. Its content includes Chinese, mathematics, science, society, art and other disciplines, aiming at cultivating students' comprehensive quality. Students develop their intelligence, emotion, morality and body in an all-round way through classroom study, practical inquiry and social interaction. Learning methods include listening, speaking, reading, writing, thinking and practicing, and learning materials include textbooks, reference books and network resources. The goal of K 12 education is to lay a solid foundation for students' future study and life, so that they can become all-round talents with innovative spirit and practical ability.