I don't know if what you are talking about is a new vision of secondary training computer. If so, I advise you not to choose him. By going up one flight of stairs, especially the teacher, said he was a professional teacher, but he was actually a student of our school. To tell the truth, some problems are not as good as my own understanding, and my attitude is not good. Get angry when you think about it. It's a liar, talking about ensuring the pass rate, cut! This is crazy.