1. Excellent teachers: The excellent online courses in Qingbei are taught by top teachers from Peking University and Tsinghua, with high teachers' level and rich teaching experience and professional knowledge.
2. Complete knowledge system: Qingbei online courses are mainly subject knowledge, covering courses in humanities, social sciences, natural sciences and other fields. Learners can choose subjects they are interested in or need to improve.
3. Flexible learning style: Online classroom is flexible in time and space, and learners can learn according to their own time and rhythm, regardless of place and time. This provides more opportunities and ways for students to learn independently.
4. Network interaction: Online courses provide a platform for interaction between teachers and students. Students can communicate with teachers through online discussion, question and answer, solve problems and improve learning effect.
However, whether specific online courses are useful or not needs to consider personal circumstances and expectations. Different students have different learning needs and learning styles. For some students, online courses may be more suitable for their learning style. For other students, face-to-face traditional classroom teaching may be more effective. Therefore, I suggest that everyone consider their own learning methods and objectives, as well as the specific content and evaluation of online courses, and comprehensively judge whether the excellent online courses in Qingbei are suitable for their own use.