Quark announced a comprehensive upgrade of its "AI Search" product, which allows users to search for all kinds of new questions and problems through cell phones, tablets, computers and other devices, and the AI will explain the topics step by step and support users to ask questions at any time. According to reports, Quark AI can also provide in-depth explanations around the knowledge points and test points in the questions, accurately locate the key steps, and enable users to not only learn the difficult questions, but also learn a class of questions by example with the experience of "heuristic" learning. At the same time, Quark released the "Spiritual Knowledge" learning model. The official said that in the latest evaluation, Quark's "Spiritual Knowledge" Learning Model has a positive performance on the math problems of the exam...