The two best majors of PetroChina are Stone Institute of Technology and School of Mechanical and Storage Engineering, namely petroleum engineering and oil and gas storage and transportation engineering. If the Petroleum Institute is the best, it must be PetroChina, but have you ever heard of anyone in economics who said that the first trade is the best? There are too many schools that learn the economy well, such as Peking University, National People's Congress and Central Finance and Economics. , are the top few. If you want to be at the forefront of the country, go to PetroChina. If you want to find a good job (there are too many economic units), then you should come first in economy and trade, if you can't get better grades.