By their very definition,black holes are 1) objects which are not supposed to 2) emit anything .It therefore seemed that the area of the 3) event horizon of a black hole could not be regarded as its 4

发表于:2018-11-28 / 阅读(127) / 评论(0) 分类 疯狂英语2002年

[ti:UNIT 4 My Neighbourhood Lesson 27:My Map, Your Map, Our Maps!] [0:00.833]UNIT 4 第四单元 [0:02.802]My Neighbourhood 我周围的地区 [0:04.800]Lesson 27: 第27课: [0:06.709]My Map, Your Map, Our Maps! 我的地图,你的地图,我们的

发表于:2018-12-10 / 阅读(114) / 评论(0) 分类 河北教育初中英语(初中起点)八年级上

Mr. Smith taught English at a school .At the beginning of his lesson, he liked to have one of his students give a report on any subject. When it was Jack's turn, he told his audience about his elder b

发表于:2019-01-03 / 阅读(75) / 评论(0) 分类 英汉幽默故事选读

Travis--colder~~ i'm in love with everything with every face i've ever seen and every place i've ever been has left its mark upon my worries i color in the world i see i pick apart the melody 'cause maybe there's a symphony caught inside but there's

发表于:2019-01-10 / 阅读(94) / 评论(0) 分类 E乐吧

Why does salt dissolve in water but oil doesn't? 为什么盐可溶于水而油却不行呢? Well, in a word,chemistry. But that's not very satisfied, isn't it? 总的来说,是化学作用。但这并不令人满意,对吧? Well, the reason

发表于:2019-01-17 / 阅读(37) / 评论(0) 分类 TED演讲教育篇

In 1875, when a young German in Kiel named Max Planck was deciding whether to devote his life to mathematics or to physics, he was urged most heartily not to choose physics because the breakthroughs had all been made there. The coming century, he was

发表于:2019-01-29 / 阅读(49) / 评论(0) 分类 万物简史