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Four times a year, Ghez focuses the telescope on the stars of the very heart of our Milky Way. She is looking for the telltale high speeds that reveal the presence of a black hole. The center of the M
超大质量黑洞
In every galaxy scientists looked at, they found evidence for a supermassive black hole. NGC 3115 NGC 3377 NGC 3379 In M31 and M32 In total there is probably 20-30 or so black holes that have been fou
超大质量黑洞
By measuring how fast these stars were moving, he could prove if there really was a black hole at the center of an active galaxy. I picked a galaxy nearby which is called NGC 1068, an active galaxy, w
超大质量黑洞
Black Or White 黑与白 I took my baby on a Saturday bang 我带着宝贝在周末开车兜风 Boy, is that girl with you? 小伙子，这是你的姑娘？ Yes, we're one and the same 是的，我们心心相印，合二为一 Now, I believe in mir
中国好声音英文歌
AA: I'm Avi Arditti. Rosanne Skirble is away, but joining me from Los Angeles is English teacher Lida Baker to explain our topic on Wordmaster this week. It's a feature of the language called compounding. LIDA BAKER: Compounding is when we take two w
词汇大师(Wordmaster)
He walked into the doctors office. The receptionist said hello. He said hello. She asked if he had an appointment. He said, Yes, I have an appointment at 2 oclock. She told him to sign in. He signed in. Which doctor are you seeing? she asked. Im seei
简单慢速英语阅读
Mary Morningstar Country star Clint Black launched his recording career in 1989 with RCA Records. During his 12 years with the label, Clint charted 27 Top 5 singles, including 13 Number Ones. He enjoy
VOA2004（上）--艺术专集
Two Little Black Birds 两只黑色的小鸟 Two little blackbirds sitting on a hill, One name Jack,one named Jill. Fly away,Jack,Fly away,Jill, Come back,Jack,come back,Jill. Two little blackbirds sitting on a hill, One name Jack,one named Jill. Two
优美儿童英语歌曲
American black bears American black bears appear in a variety of colors despite their name. In the eastern part of their range, most of these brown, red, or even yellow coats. To the north, the black bear is actually gray or white in color. Even in t
英语小短文
In the high lands, people spend words as if they were golden coins. But the custom is strong there: strangers who ask for hospitality must be granted it, though you have a blood feud against them and their clan or kind. The womanlittle more than a gi
英文短篇小说
歌曲 ： Black roses red 艺人 ：Alana Grace 音乐星级 ： ★★★★ 所属专辑 ：With One Word 发行年代 ：2009 风格 ：PopRock 相关介绍 ：Alana Grace-1987年12月20日出生在加利福尼亚洛杉矶，不过自小和她的家庭搬到了田纳西。音乐是她家族的传统，她的父亲和祖父都
英文摇滚歌曲
China's Ministry of Transport says it has sent the rescue vessel Nan-hai-jiu 101 to help retrieve the black boxes of flight 8501. The ship set sail at ten AM today from south China's Haikou City. It is heading for the sea area where the wreckage is l
cctv9英语新闻2015年
BEIJING, Oct. 13 (Xinhuanet) -- Scientists have decoded the genome of Black Death which caused one of the worst plagues in human history. The finding was published Wednesday in the scientific journal Nature. A team of German, Canadian and American sc
英语新闻
Beginners. Black Friday is the name of the day after Thanksgiving. Thanksgiving is the fourth Thursday of the month of November, and Black Friday is the following day. It is one of the biggest shopping days of the year. Stores open at 5am, and some e
英语博客 A cup of English
今天学的词组是Black Friday，B-l-a-c-k F-r-i-d-a-y。美国人把感恩节过后的星期五称作Black Friday -- 黑色星期五。为什么呢？因为美国商店在这天总是会提早开门、减价促销 ，代表圣诞采购季节的开始
英语单词荟萃
《Back in Black》是AC/DC的歌，首次出现在他们1980年的同名专辑中。这首歌被VH1评为40首最了不起的金属歌曲第四位。它也被滚石杂志列在500首最伟大的歌曲第187首。 【双语歌词】 Back in black I h
英乐时空
【萝莉来了】13岁萝莉Rebecca Black首单Friday 乐坛流行低龄化了咩？正太萝莉层出不穷这是要闹哪样！Rebecca Black童鞋你真的只有13岁嘛？虽然看上去很讨人喜欢的一个小姑娘，笑容甜美可爱但是你
经典英文歌曲
Island 唱片的新乐队(到现在也不算新了)Jet Black Stare以爆炸般的方式在电台中发布了他们在 Modern ROCK (现代摇滚) / Mainstream Rock (主流摇滚)乐风之路上的第一首单曲Ready To Roll,随后他们在08年7月15日
英文摇滚歌曲
夏天到了，很多人都怕晒黑。但是英语里晒黑、皮肤黑可不是black，而白也不是white。快跟Jenny和Adam学习正确的说法吧！ Black And white形容种族 先说一下，black and white可以形容肤色，但是形容种
美国文化脱口秀
《暮光之城》另类插曲：Supermassive Black Hole Supermassive Black Hole是另类摇滚乐队Muse在06年推出的一支单曲，在当年的英国单曲榜上排名第四。这首歌曲同时也作为热门青春影片《暮光之城》Twili
影视英文歌曲