Lean should be a small local organization in Chongqing, and the price is basically unreliable. Choosing a training institution depends on the scale first. Generally, institutions with small scale, low popularity and high price are generally unreliable. It is certain that it is large in scale, relatively rich and can afford good teachers. Second, it is a national chain. Teachers attend classes every year and train students hundreds of times. This kind of teaching experience and familiarity with exams can't be compared with small local institutions. It takes 1.2 years to attend classes several times a year. Secondly, you have to see if the company has books, because the training of civil servants must come from books. Companies that develop books in this province must have deep research on the civil service examination, and their teaching and research strength is also relatively strong. In Chongqing, the best institution should be Chongqing painting.