How about the police work in Tibet's entry-exit frontier inspection?

Tibet's entry-exit frontier inspection police have done an excellent job. Wages in Tibet below 4000 meters above sea level are similar to those in the mainland, and those above 4000 meters above sea level. During the police internship, there were 8 thousand in winter. After working for two or three years, five figures are not a problem. More than 4500 meters, more than 3000 meters 1000 meters, the treatment is very good.