股票指数期权属于期货期权 www.973620.live 桃花澗遺址
Taohuajian Paleolithic Site
Taohuajian Paleolithic Site is the relic of people’s production and living in 40-50 thousand years ago. As for the cultural type, it belongs to Longshan Culture and Dawenkou Culture, and is listed as the important protection unit of cultural relic of the province. Stone axes, ship- shaped pebble tool, funnel-shaped pebble tool, stone flake scraper and many other tools prior to human history ,were dug up in this site, containing one of the earliest stone tools in Jiangsu province with the age of thousands years.