[数] 特种球多项式

Text Can you prove that the earth is round? Go ahead and try! Will you rely on your senses or will you have to draw on the opinions of experts? WHY DO WE BELIEVE THAT THE EARTH IS ROUND? George Orwell Somewhere or other — I think it is in the prefa

发表于:2018-12-04 / 阅读(165) / 评论(0) 分类 大学英语精读第四册

Do you know so many of you will climb into your cars today perhaps to shuffle your children to soccer, to football, make their (refer to the cars) run to the grocery store. But do you also know what's

发表于:2018-12-11 / 阅读(102) / 评论(0) 分类 万花筒2006年

歌曲 : Amazing 艺人 :Inna 音乐星级 : ★★★★ 所属专辑 :Hot 发行年代 :2009 风格 :Euro-Dance 相关介绍 :Inna,相当特殊又好记的名字,这位俏丽可人的姑娘1986年出生于罗马尼亚。罗马尼亚是电子舞曲业十分发达的国家,我们比较熟悉的还有DJ Project,Play W

发表于:2018-12-14 / 阅读(90) / 评论(0) 分类 舞曲狂欢

人类对于火星的探险总是充满了好奇..... Callum: Hello and welcome to 6 Minute English, I'm Callum Robertson and with me today is Kate, hello Kate. Kate: Hello Callum. Callum: Do you like going on business trips? Kate: Well I do quite li

发表于:2018-12-27 / 阅读(60) / 评论(0) 分类 一起听英语

Declassify US government documents and witness testimony from former or retired US military personnel confirm beyong any doubt the reality of ongoing UFO incursions at nuclear weapon sites. When I say UFO, the witnesses have described this craft as d

发表于:2019-01-08 / 阅读(107) / 评论(0) 分类 CNN2010年(十)月

This is Scientific American's 60-Second Science. I'm Cynthia Graber. This will just take a minute. When we think about how to represent sound visually, most of us probably picture those volume-dependent sine waves. But thats not how John Stuart Reid

发表于:2019-01-08 / 阅读(90) / 评论(0) 分类 Scientific American(一)月

If youve ever had a garden or grown flowers in a window box, youve probably heard that you shouldnt water your plants at high noon because their leaves might scorch. Now a study in a journal called New Phytologist confirms that water droplets can foc

发表于:2019-01-08 / 阅读(119) / 评论(0) 分类 Scientific American(一)月

One of the world's most amazing migration is about to begin in earnest: 300 million monarch butterflies spread across North America are about to converge on small forests in the mounts of Mexico. This year, the butterflies have an unusual company as

发表于:2019-01-08 / 阅读(151) / 评论(0) 分类 2005年NPR美国国家公共电台

歌曲 : Nights And Days 艺人 :Inna 音乐星级 : ★★★★ 所属专辑 :Hot 发行年代 :2009 风格 :Euro-Dance 相关介绍 :Inna,相当特殊又好记的名字,这位俏丽可人的姑娘1986年出生于罗马尼亚。罗马尼亚是电子舞曲业十分发达的国家,我们比较熟悉的还有DJ Project

发表于:2019-01-11 / 阅读(72) / 评论(0) 分类 舞曲狂欢

歌曲 : Love 艺人 :Inna 音乐星级 : ★★★★ 所属专辑 :Hot 发行年代 :2009 风格 :Euro-Dance 相关介绍 :Inna,相当特殊又好记的名字,这位俏丽可人的姑娘1986年出生于罗马尼亚。罗马尼亚是电子舞曲业十分发达的国家,我们比较熟悉的还有DJ Project,Play Win

发表于:2019-01-11 / 阅读(72) / 评论(0) 分类 舞曲狂欢

歌曲 : Hot 艺人 :Inna 音乐星级 : ★★★ 所属专辑 :Hot 发行年代 :2009 风格 :Euro-Dance 相关介绍 :Inna,相当特殊又好记的名字,这位俏丽可人的姑娘1986年出生于罗马尼亚。罗马尼亚是电子舞曲业十分发达的国家,我们比较熟悉的还有DJ Project,Play Win,Ak

发表于:2019-01-11 / 阅读(98) / 评论(0) 分类 舞曲狂欢

By Robert Berger Jerusalem 14 November 2009 An ultra-orthodox Jewish man is seen next to Intel's Jerusalem office building, 14 Nov 2009 Alleged violations of the Jewish Sabbath by a top international company prompted religious protests in Jerusalem

发表于:2019-01-14 / 阅读(115) / 评论(0) 分类 VOA标准英语2009年(十一月)

You see the larger wing area here. 你们可以看到这儿有面积更大的翅膀。 Also, clearly, it was such a powerful thing,we wanted to try and bring other people but we couldn't figure out how to do it. 而且,这还是件很有影响力的事

发表于:2019-01-18 / 阅读(94) / 评论(0) 分类 TED演讲娱乐篇

China has long depended on coal-burning power plants to fuel its explosive growth over the past three decades. As a result, air pollution has risen to alarming levels in central and eastern regions. Policymakers have been working hard to shift the co

发表于:2019-01-19 / 阅读(141) / 评论(0) 分类 2017CRI中国国际广播电台

生活大爆炸第一季第九集_3:The Cooper-Hofstadter Polarization Okay, I'm leaving for the conference. 好啦,我要去参加会议了。 -Sheldon:Have fun presenting my lucky hunch. 祝你报告我的小运气愉快。 -Leonard:Shel, I

发表于:2019-01-28 / 阅读(78) / 评论(0) 分类 生活大爆炸第一季

每年,《时代周刊》都选出让世界更美好、更智能、更有趣的发明。今年的也能让你大吃一惊哦! 1.The Levitating Lightbulb 1.悬浮灯泡 Since he was a child, Simon Morris has been obsessed with making objects float

发表于:2019-02-01 / 阅读(101) / 评论(0) 分类 阅读空间

英语里你不知道的几个小秘密 The shortest complete sentence in the English language consists of only one word and that is Go. 英语里由一个单词组成的最短的完整的句子就是GO。 The oldest word in the English language is t

发表于:2019-02-04 / 阅读(118) / 评论(0) 分类 实用英语

For one thing, if this was just the Ebbinghaus effect, 首先,如果真是艾宾浩斯效应, then we would expect the moon illusion to disappear for pilots flying high above the clouds 那么我们应该预期月球错觉对于空中的飞行员来

发表于:2019-02-13 / 阅读(66) / 评论(0) 分类 TED演讲教育篇

Despite temperatures of around 30-degrees on Sunday, hundreds turned out in southwest Beijing to take part in what's known as an ultra-marathon. More than twice the distance of a marathon, which is just over 42-kilometers, ultra-marathons are conside

发表于:2019-02-18 / 阅读(118) / 评论(0) 分类 英语新闻

1. The shortest complete sentence in the English language consists of only one word and that is Go. 英语里由一个单词组成的最短的完整的句子就是GO. 2. The oldest word in the English language is town. 英语里最有年头的一个词

发表于:2019-02-25 / 阅读(138) / 评论(0) 分类 英文语法词汇