In my opinion, if you meet the requirements,

More than 70% of undergraduate science and engineering classes can pass.

About 40% of the economic class is the most difficult.

Other liberal arts, 50~70%

50% possibility of graduate students

The most difficult possibility to enter the juvenile class is about 30%

It also depends on your luck, whether the professors are willing or not, and some professors are so disgusted with China students that they don't even look at them when they sign up. If you are going to graduate school, contact the professor first. If you find a professor, it's probably no problem.

Good luck.