1 Down syndrome, usually is caused by an extra copy of chromosome 21 (trisomy 21). Characteristics include decreased muscle tone, asymmetrical skull, slanting eyes and mild to moderate mental retardation.  Edward's syndrome, which is the second most common trisomy after Down syndrome. It is a trisomy of chromosome 18.
Guanxi describes the basic dynamic in personalized networks of influence, and is a central idea in Chinese society.
Xinhui (Chinese: æ°ä¼), also known as Kuixiang (Chinese: èµä¹¡), is a city district in the City of Jiangmen in the province of Guangdong in southern China. Xinhui people are part of the greater Siyi people, in the Greater Siyi Region.n turn, Xinhui has jurisdiction over 10 towns, 239 village commissions, 25 community residents' committees and 4 agencies. Xinhui administrated Jiangmen Town before being placed under Jiangmen rule.