a study based on Dunhuang murals 汉唐美术空间表现研究：以敦煌壁画为中心：a study based on Dunhuang murals a study based on Chinese enterprises a study based on conceptual structures a story based on real events a study based on the pearl river delta a study based on Chinese practice a study based on the Pingzhengyuan Judgments a study based on word association a study based on priceline