This is Scientific American's 60-Second Science, I'm Christopher Intagliata. Got a minute? Life on earth requires six basic ingredientscarbon, hydrogen, nitrogen, oxygen, sulfur and phosphorus. Those six elements are the building blocks for DNA and R

发表于:2019-01-08 / 阅读(60) / 评论(0) 分类 Scientific American(十二)月

歌曲: With Every Bit Of Me 艺人: Kevin Borg 音乐星级: ★★★★ 所属专辑: 未知 发行年代: 2008 风格: Pop 介绍: Kevin Borg是岛国马尔他的新秀,全名Kevin James Borg,1986年出生,他在2008年参加了瑞典偶像的比赛,并且获得了冠军。他是此比赛有史以来的

发表于:2019-01-16 / 阅读(121) / 评论(0) 分类 音乐咖啡厅

AA: I'm Avi Arditti with Rosanne Skirble, and this week on Wordmaster: counting words. RS: If you wanted to show people the 88,000 most common words in English, how would you do it? Jonathan Harris thought of a sentence -- or something that looks lik

发表于:2019-01-18 / 阅读(42) / 评论(0) 分类 英语单词大师-Word Master

The commercial potential for the stuffwhich soon became known as phosphorus, from Greek and Latin roots meaning light bearingwas not lost on eager businesspeople, but the difficulties of manufacture made it too costly to exploit. An ounce of phosphor

发表于:2019-01-29 / 阅读(51) / 评论(0) 分类 万物简史

Broadcast on COAST TO COAST: September 2, 2004 AA: I'm Avi Arditti with Rosanne Skirble, and this week on Wordmaster: counting words. RS: If you wanted to show people the 88,000 most common words in English, how would you do it? Jonathan Harris thoug

发表于:2019-02-07 / 阅读(108) / 评论(0) 分类 词汇大师(Wordmaster)

Matches Striking matches, on this Moment of Science. Have you ever had a problem getting a match to light? If so, you might be using the wrong type of match. There are actually two different types of matches: safety matches and strike-anywhere matche

发表于:2019-02-26 / 阅读(61) / 评论(0) 分类 英语听力文摘 English Digest