羊膜镜

Lesson 43:Over the South Pole 飞越南极 First listen and then answer the question. 听录音,然后回答以下问题。 How was the plane able to clear the mountains? In 1929, three years after his flight over the North Pole, the American explor

发表于:2018-12-08 / 阅读(264) / 评论(0) 分类 新概念英语第二册

By Parke Brewer The women's pole vault provided one of the stirring dramas of the 2004 Olympic track and field competition. Until the mid 1990s, women's pole vault was not taken very seriously, mainly

发表于:2018-12-12 / 阅读(49) / 评论(0) 分类 VOA2004(下)--雅典奥运

Scott and his final team of five arrived at the South Pole in 1912 January to find they had been beaten to it by a Norwegian team led by Roald Amundsen, 1912年一月,斯科特和他的五人小分队 到达了南极点。但不巧,他们发现由挪

发表于:2019-01-18 / 阅读(20) / 评论(0) 分类 TED演讲娱乐篇

Scott and his final team of five arrived at the South Pole in 1912 January to find they had been beaten to it by a Norwegian team led by Roald Amundsen, 1912年一月,斯科特和他的五人小分队 到达了南极点。但不巧,他们发现由挪

发表于:2019-01-18 / 阅读(36) / 评论(0) 分类 TED演讲娱乐篇

25 大气层中臭氧正日渐稀薄 DATE=3-21-01 TITLE=SCIENCE REPORT - (1)Springtime Ozone Loss BYLINE=George Grow (Start at 1'00

发表于:2019-01-30 / 阅读(254) / 评论(0) 分类 科技之光