抓取时间:2011年04月19日 11:03:01 网址:http://www.freewebdirectory.cn/ 标题:Military | Military Evolution 关键字: 描述:As a civilization man has been very adaptive in the sense that we have withstood all the breathtaking blows of nature and history in order to stand our ground firmly and stay on top of the food chain. 主体: