Development of green urbanization under the guidance of deep ecology Implementation of Abstract MAC Layer Under Jamming A Comparative Study of Land Economy under Different Ownerships in China Structural reform of agricultural supply side under the concept of green development Efficient Publication of Distributed and Overlapping Graph Data Under Differential Privacy A New Method of Portfolio Optimization Under Cumulative Prospect Theory Construction of pastoral complex in Guizhou under the background of rural revitalization Empirical analysis of BEijing forEstry industrial structurE and its compEtitivEnEss undEr thE Background of low carBon Economy Rural Migrant Workers’ Welfare and Labor Protection in China under the Labor Contract Law Study on pricing decision of new energy vehicle supply chain under Baa S model