What is the difference between "upgraded version", "special version" and "special version"? How many years does it take from junior college to undergraduate course? Be specific, thank you!

The transfer of books from junior college can be tested in the second and third day of your junior high school. After being admitted, you can go directly to a sophomore university for four years. The special edition is to take the exam after graduating from junior college for three years, and then study in the admitted university for two years, one * * * five years. The undergraduate course can be tested if you want to continue your studies after graduating from college.