日韩午夜精品视频,欧美私密网站,国产一区二区三区四区,国产主播一区二区三区四区

Group One
Content: Travel on foot to investigate the water quality of Shuiyagou and Renminqu rivers in Beijing
Assembly Time: 8:00 AM, September 1, 2007
Assembly place: Entrance of the New China Life Insurance Co., Liuliqiao, Beijing
Sponsor: Nature University

Group Two
Content: Travel on foot to investigate the water quality of Liangma River in Beijing
Assembly Time: 8:00 AM, September 1, 2007
Assembly place: Entrance of No. 13 Subway, Dongzhimen, Beijing
Sponsor: Nature University

(China.org.cn August 31, 2007)