抗胆甾醇血的,抗胆甾醇血药

Supermassive Black Holes 超大质量黑洞 - 8

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

发表于:2018-12-07 / 阅读(428) / 评论(0)

超大质量黑洞

Supermassive Black Holes 超大质量黑洞 - 1

In March 2000, two astronomers made an extraordinary discovery, one that is set to overturn our understanding of how the universe formed. We're never going to see a time like this in astronomy again.

发表于:2018-12-07 / 阅读(439) / 评论(0)

超大质量黑洞

Supermassive Black Holes 超大质量黑洞 - 2

But we are just one in 125 billion galaxies of different shapes and sizes spinning through space. Yet scientists haven't been able to explain how a single one of these galaxies was created. Galaxy for

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超大质量黑洞

Supermassive Black Holes 超大质量黑洞 - 4

This ferocious heart of brilliant hot gas is called a quasar. Scientists thought this whirling mass might be caused by a giant black hole sucking up gas and stars, literally feeding on the center of a

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超大质量黑洞

VOA慢速英语2011--Blue Holes: Some of the Least Explored Areas on Earth

EXPLORATIONS - Blue Holes: Some of the Least Explored Areas on Earth BARBARA KLEIN: Im Barbara Klein. STEVE EMBER: And Im Steve Ember with EXPLORATIONS in VOA Special English. A blue hole is a flooded sea cave with a hole that opens up at the lands s

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2011年VOA慢速英语(十一)月

快口说英语047

No. 47 This is a lovely desk Conversation 1 This is a lovely wood desk. Yes, it's an antic. Conversation 2 Do you have any antic dolls? Yes, we have quite a collection of fine porcelain dolls from the early nineteen hundreds. Conversation 3 I saw a b

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快口说英语

温馨夜读II PART4 12.18 Holes in His Mind

[00:00.52] 12.18 Holes in His Mind [00:06.29]Major James Nesmeth had a dream of improving his golf game and he developed a unique method of achieving his goal. [00:14.35]Until he devised this method, he was just your average weekend golfer, shooting

发表于:2018-12-26 / 阅读(124) / 评论(0)

温馨夜读II

双语有声阅读:Black Holes 黑洞

What is a black hole? Well, it's difficult to answer this question, since the terms we would normally use to describe a scientific phenomenon are inadequate here. Astronomers and scientists think that a black hole is a region of space (not a thing) i

发表于:2019-01-02 / 阅读(125) / 评论(0)

双语有声阅读

电影歌曲:Supermassive Black Holes Muse

Supermassive Black Holes Muse oh baby dont you know i suffer? oh baby can you hear me moan? you caught me under false pretences how long before you let me go? you set my soul alight you set my soul alight (you set my soul alight) glaciers melting in

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电影歌曲

SCIENCE IN THE NEWS - Stephen Hawking and Black Holes / Quan

SCIENCE IN THE NEWS - Stephen Hawking and Black Holes / Quantum Theory By Caty Weaver Broadcast: Tuesday, August 17, 2004 VOICE ONE: This is SCIENCE IN THE NEWS, in VOA Special English. I'm Bob Dought

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科技之光

VOA慢速英语2010年-PEOPLE IN AMERICA - Jacob Riis, 1849-1

SHIRLEY GRIFFITH: I'm Shirley Griffith. RAY FREEMAN: And I'm Ray Freeman with the VOA Special English program PEOPLE IN AMERICA. Every week at this time, the Voice of America tells about someone important in the history of the United States. This wee

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2010年VOA慢速英语(八)月

VOA慢速英语2010年-EXPLORATIONS - Blue Holes: Some of the

BARBARA KLEIN: Im Barbara Klein. STEVE EMBER: And Im Steve Ember with EXPLORATIONS in VOA Special English. A blue hole is a flooded sea cave with a hole that opens up at the lands surface. These cave systems form in carbonate rock, often on islands.

发表于:2019-01-12 / 阅读(157) / 评论(0)

2010年VOA慢速英语(十一)月

New Data Adds to Understanding of 'Black Holes'

New Data Adds to Understanding of 'Black Holes' WASHINGTON Scientists continue to learn more about black holes in space, places where the pull of gravity is so strong that not even light can escape. Black holes occur after supergiant stars explode in

发表于:2019-01-14 / 阅读(174) / 评论(0)

VOA标准英语2016年(九月)

Philomela菲勒美拉

Philomela菲勒美拉PhilomelaKing Pandion of Athens had two daughters,Procne and Philomela.When Athens was threatened by the wild men,King Tereus of Thrace came to its help.Out of gratitude King Pandion offered Tereus either of his daughters in marr

发表于:2019-02-04 / 阅读(128) / 评论(0)

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VOA标准英语10月-Key International Central Banks Coordinate Intere

U.S. and European central banks have in unison cut their interest rates by half a percentage point. The coordinated move is aimed at bringing some stability back to the shaky global economy and slumping stock markets. For VOA, Tom Rivers reports fro

发表于:2019-02-06 / 阅读(98) / 评论(0)

VOA标准英语2008年（十月）

voa标准英语2008-Major European Interest Rate Cuts Fail to Rally

Continued economic weakness has led to another round of interest rate cuts in Europe, while the number of Americans receiving unemployment benefits has reached a 26-year high. A broker is seen under the curve of the German stock index DAX at the sto

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VOA标准英语2008年(十二月)

PBS高端访谈:英国伦敦首位穆斯林市长萨迪克·卡恩发表讲话

SADIQ KHAN, MAYOR OF LONDON: I am so proud that London has today chosen hope over fear, and unity over division. DAVID TERESHCHUK, PBS NEWSHOUR WEEKEND CORRESPONDENT: When Sadiq Khan was elected mayor of London seven months ago, he became the first e

发表于:2019-02-13 / 阅读(129) / 评论(0)

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【有声英语文学名著】战争与和平 Book 11（30）

Chapter 30 - The Rostvs at Mytshchi The glow of the first fire that began on the second of September was watched from the various roads by the fugitive Muscovites and by the retreating troops, with many different feelings. The Rostov party spent the

发表于:2019-02-13 / 阅读(147) / 评论(0)

有声英语文学名著

音乐咖啡厅:Marc Terenci - Love to be loved by you

音乐咖啡厅:Marc Terenci - Love to be loved by you 相关介绍：关于Marc Terenci我就不想过多介绍了，多年以前，听到这首，只能感受到从歌曲中流露出的悲伤旋律，如今，再次听起这首歌，看着歌词，才

发表于:2019-02-17 / 阅读(159) / 评论(0)

音乐咖啡厅

夏说英语新闻晨读第131期:Pokeman Go

本期内容： SharesinNintendorosebynearlyaquarterfollowingthesuccessoftheJapanesecompanysnewPokmonGogame,inwhichusershuntcharactersinreal-worldlocationsusingsmartphones,helpedbyin-gamepurchases.ItimmediatelyheadedtheAmericangamingcharts.Nintendosp

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acetohydroxyacid

acid refractory material