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Do you want to buy the carbon-oxygen universal pen in the homework help?
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Because of the functional reasons, the carbon-oxygen universal learning pen mainly explains nine subjects such as mathematics, physics and chemistry. It has built-in homework help's massive question bank, covering all kinds of questions from primary school to high school.

Carbon-oxygen universal pen is an intelligent hardware brand owned by homework help. This learning pen adopts advanced artificial intelligence adaptive learning system and OCR image recognition technology, which has the functions of dictionary pen scanning, word search and translation, and also adds the function of "answering questions about general knowledge points", which can help children improve their academic performance to some extent. Moreover, it is the first pen product in the industry, and it is also the only pen product on the market that supports all-subject learning.