a case study of the central subregion of Henan Province 教育治理体系下的中小学办学自主权实证研究：以豫中地区为例：a case study of the central subregion of Henan Province a case study of the zone around the Dongting lake of Hunan province a cases study of the central plains economic zone a case study of the ancient city of Phoenix in western Hunan Province a case study of bianlin town in Ling county of Shandong province a case study of private enterprises in Zhejiang province a case study of rural households in Hebei province a case study of Yantian village, Guangdong province a case study of the English versions of Hong Lou Meng