I participated in Shanghai last year, when there were aerospace classes, juvenile classes, elite classes for college students, and finally special training classes.

Space courses are very expensive and take a long time, five months. Personally, I think it's better to have no foundation, and those with foundation may become more and more annoying.

I've been on duty for two months, and it feels good, but if you don't have any foundation in advance, it's estimated that you will only hang it at work.

I have had contact with the students in the elite class. It is said that they just saved the class and removed the guarantee. Nice review. If you are not afraid of failure, just report it.

Special training is to do the topic, and there will be some gains, but it is impossible to cram temporarily.

You can send me a message and be willing to answer your specific questions.