I am a fresh college graduate. After returning to Hangzhou, I want to go to Zhejiang University to study electrical automation. Can I sit in the classroom of Zhejiang University?
Yes, but you have to find out what campus and classroom the course is in. Just go directly, and no one will restrict you from listening. You'd better find a Zhejiang University student you know who can help you find out where to listen. Do you want to take a professional course in electrical automation? It should be in the electrical building of Yuquan campus.