Unlike Xuzhou, where is Rugao under the adminstration of?
Xuzhou: Xuzhou, known as Pengcheng in ancient times, is a major city in and the fourth largest prefecture-level city of Jiangsu Province, China. Xuzhou:  Its population was 8,577,225 at the 2010 census whom 2,623,066 lived in the built-up (or metro) area made of Quanshan, Gulou, Yunlong and Tongshan districts.
i don't know