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Essence teaching video
"Essence Teaching Video" Baidu network disk resources are downloaded for free.

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Essentials Teaching Video | Compressed Package | Physics | Mathematics | Biology | Chemistry |9. Elective Course 4_ Fundamentals of Electrochemistry |8. Elective Course 4_ Chemical Reaction and Energy _ (Rate) |7. Elective Course 4_ Ion Balance in Aqueous Solution |6. Seize the chemical site-compulsory course 2_ Element compound inference, element period |5. Seize the chemical industry site-compulsory course II. 3. Seize the chemical site-compulsory 1_ activate the chemical potential |20. The Catalyst for Winning the College Entrance Examination-Chemistry Experiment and Calculation |2. Seize the chemical site-force 1_ metals and their compounds