Principle and maintenance of automobile electrical and electronic equipment, principle and maintenance of automobile air conditioner, electronic control technology of engine, computer maintenance technology of automobile, electronic control technology of automobile body and chassis, anti-theft system of automobile central door lock, maintenance technology of automobile stereo, maintenance technology of automotive sheet metal, imported automobile maintenance English, foundation of automobile application engineering, management of automobile maintenance enterprise, management and replacement knowledge of automobile parts, automobile insurance and claim settlement, and computer application foundation.