Policies and practices of integrated development of Beijing-Tianjin-Hebei region Research report on the talents' integrated development in Beijing-Tianjin-Hebei region Focus on the coordinated development of the Beijing-Tianjin-Hebei region Research on strategic focus of collaborative development of beijing-Tianjin-Hebei region 并列题名：Research on strategic focus of collaborative development of beijing-Tianjin-Hebei region Coordinated development of Beijing-Tianjin-Hebei region Coordinated e-commerce development of the Beijing-Tianjin-Hebei region 并列题名：Coordinated e-commerce development of the Beijing-Tianjin-Hebei region Coordinated development of the Beijing-Tianjin-Hebei region 并列题名：Coordinated development of the Beijing-Tianjin-Hebei region