letters and calls, and do practi cal thi ngs for the masses combi ne good, effective through rea chi ng pe ople at the servi ce of the "last mile". T hird, foster the development of new energy, new Genera l Secretary XI Jinping stre sse d devel opme nt of innovation f orest re struct uring, revitali zation of the old industrial base s in Northea st China is t he State's major strategy, Ce ntral ha