By piecing together the evidence these creatures left behind, we can build a picture of this sub-tropical corner of the continent as it was 13,000 years ago. While most of North America was still in the grip of the Big Freeze, Florida was an ice age

发表于:2018-12-03 / 阅读(42) / 评论(0) 分类 探索与发现2012年

地道美语听力播客English as a Second Language Podcast (ESLPod),是一家位于美国加州洛杉矶的英语教育研究机构推出的英文听力会话,于2005年7月23日首播, 主播Dr. Jeff McQuillan为南加州大学的语言学博士

发表于:2019-01-01 / 阅读(53) / 评论(0) 分类 地道美语播客

By Margaret Besheer United Nations 24 September 2009 President Barack Obama addresses the United Nations General Assembly, New York, 23 Sep 2009 World leaders addressing the U.N. General Assembly underscored issues of domestic and international conc

发表于:2019-01-13 / 阅读(58) / 评论(0) 分类 VOA标准英语2009年(九月)

GadhafiLoyalistsFleeinConvoytoNiger Reports that a large convoy of Moammar Gadhafi's supporters has fled Libya for Niger have angered many in the Libyan capital. Citizens want to see their former leader and those around him facing justice at home. A

发表于:2019-01-13 / 阅读(72) / 评论(0) 分类 VOA标准英语2011年(九月)

Libya Faces Economic Challenges in Post-Gadhafi Era Moammar Gadhafi is dead, but Libyans still face many difficulties now that their long time leader is gone, including how to repair a battered economy. Before the uprisings, Libya produced roughly 1.

发表于:2019-01-14 / 阅读(53) / 评论(0) 分类 VOA标准英语2011年(十月)

LOS ANGELES, June 18 (Xinhua) -- Microsoft Corp. unveiled Monday a family of tablets dubbed Surface, built on Windows 8, at an event in Los Angeles. Microsoft Chief Executive Steve Ballmer introduced the company's Surface family of tablets. The devic

发表于:2019-02-17 / 阅读(66) / 评论(0) 分类 英语新闻