Don't worry, I just graduated from technical secondary school to junior college. I also studied mechatronics. Just like your situation, I went to a technical secondary school in 2008, studied for one year and then took the adult college entrance examination in 2009. We are science students. Adult college entrance examination mainly tests Chinese, mathematics and English. Before the exam, the teacher will have a month's class to help you review. Don't worry, there are three subjects. Wish you success! !