Textbooks are more helpful than Yuan Teng. Yuan Teng provides one-on-one online tutoring service. You can choose the right teacher for tutoring according to your learning needs. The teacher will tailor the teaching content according to your situation to help you solve the problems in your study. Textbook Help is a platform focusing on educational resources, providing a large number of teaching materials, test questions, teaching videos and other resources. Textbook help is an explanatory teaching aid with comprehensive knowledge and rich details, which is consistent with the content of the textbook. Yuan Teng's answer analysis will be more detailed, and the topic will be more targeted. In contrast, textbook help is only an auxiliary tutorial, which is helpful for preview, but learning is mainly to attend classes. Therefore, the preview aid is actually dispensable, and the teaching material is better than Yuan Teng.