case study of Binhai new area in Tianjin a case study of the players in Tianjin a case study in Jiangdong new area in haikou city 综合配套改革中的公共服务创新研究：以天津市滨海新区为例：case study of Binhai new area in Tianjin case study of Henan province case study of the Zhashui section in Qianyou River case study of Ba Village in Y reservoir area of Guangxi case study in Qinghai-tibet railway case study of pilot areas