3 Columbia University courses. $297 value. Free with one code. No card. No student email. Anyone can join. Code CYBER26 drops each course from $99 to $0: → AI Cybersecurity & Governance → Foundations of Blockchain → Decentralized Finance: Markets, Protocols, and Design How to claim: 1. Create an account on http://plus.columbia.edu 2. Open a course above and click Enroll 3. Enter CYBER26 at chec...

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🏷️ 分组: X｜为你推荐
🕒 时间: 2026-10-09 20:11:12