pheehaoyan

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2. News and Updates from Khan Academy
3. Content Update: AP® Chemistry beta

Thanks Lauren Rosebrugh Then what is the preparation of studying AP Chemistry beta? And when will course be completed?

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2. News and Updates from Khan Academy
3. Update: AP® Computer Science Principles updated for new standards!

What is the requirement for learning AP computer science?

1. Community
2. News and Updates from Khan Academy
3. Content Update: AP® Chemistry beta

What is the difference between AP Chemistry and AP Chemistry beta?