cet means college english test including 4 and 6 two levels.6 is higher.and it's also the highest level which the students who are not the english majors can reach.theoretically, cet-6 owners should handle about 7,000 words or even more.cet is a very useful and sharp certification to get a good job in China now.
Some day,I will be a beautiful butterfly, and then every thing will be better.
