李强主持召开国务院常务会议，研究促进有效投资政策措施等

Group 1 - The meeting emphasized the importance of effective investment in stabilizing economic growth and enhancing development momentum, calling for innovative policy measures and better utilization of financial tools such as central budget investments, long-term special bonds, and local government special bonds [2] - The meeting highlighted the need to plan and promote major projects in key areas such as infrastructure, urban renewal, public services, emerging industries, and future industries, aligning with the "14th Five-Year Plan" [2] - The revised "Environmental Air Quality Standards" set higher targets for annual PM2.5 concentration, aiming to improve air quality and enhance public satisfaction [2] Group 2 - The meeting discussed the draft revision of the "Bidding and Tendering Law," aiming to reform and improve the bidding system, eliminate hidden barriers, enhance evaluation methods, and increase transparency in the bidding process [2] - The meeting recognized the significant improvement in air quality in recent years and the need for coordinated policies to meet the new standards, focusing on financial, technological, and regulatory support [2]