Main cities:
Shanghai	Beijing
Tianjin	Chongqing
Hong kong	Macau
Northeastern provinces:
Heilongjiang	Jilin
Liaoning
North Central provinces:
Hebei	Shaanxi
Henan	Shandong
Northwestern provinces:
Shanxi	Ningxia
Gansu	Qinghai
Xinjiang	In.Mongolia
Eastern provinces:
Jiangsu	Anhui
Zhejiang	Fujian
Jiangxi	Taiwan
Southeastern provinces:
Guangdong	Hainan
South Central provinces:
Hubei	Hunan
Guangxi	Guizhou
Southwestern provinces:
Tibet	Yunnan
Sichuan