聚茴香脑磺酸酯

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(501) / 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(537) / 评论(0)

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

发表于:2018-12-07 / 阅读(406) / 评论(0)

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

发表于:2018-12-07 / 阅读(208) / 评论(0)

2011年VOA慢速英语(十一)月

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(176) / 评论(0)

温馨夜读II

中级英语听力lesson 27

Interviewer: I understand you're interested in holistic medicine. Can you explain what holistic medicine is? Vivienne: OK. Holistic medicine, um, takes into consideration the whole of the person. Now

发表于:2018-12-26 / 阅读(253) / 评论(0)

中级英语听力

北外英语中级听力-27

Interviewer: I understand you're interested in holistic medicine. Can you explain what holistic medicine is? Vivienne: OK. Holistic medicine, um, takes into consideration the whole of the person. Now what this means in, in most holistic systems is re

发表于:2018-12-27 / 阅读(190) / 评论(0)

北外英语中级听力

新标准初中英语七年级(下):UNIT1 Watering the trees

[00:02.69]Module 5 ACTIVITIES [00:05.80]UNIT 1 I'm watering the new trees. [00:10.91]1 Listen and read. Then say. [00:14.84]I'm standing on the hill. [00:17.65]Some teachers and students [00:20.24]are walking up the hill. [00:22.48]They are carrying

发表于:2018-12-29 / 阅读(162) / 评论(0)

外研社新标准初中英语七年级

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(193) / 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

发表于:2019-01-03 / 阅读(230) / 评论(0)

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

发表于:2019-01-07 / 阅读(222) / 评论(0)

科技之光

VOA慢速英语2011-IN THE NEWS - Gulf Oil Spill was Top Stor

This is IN THE NEWS in VOA Special English. At the end of each year, the Associated Press releases a list of the top ten news stories of the year. American editors and news directors are asked to vote for what they consider the top stories. This year

发表于:2019-01-11 / 阅读(190) / 评论(0)

2011年VOA慢速英语(一)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(204) / 评论(0)

2010年VOA慢速英语(十一)月

2006年VOA标准英语-Bush Heads to Gulf Coast for Hurricane Annivers

By Paula Wolfson White House 27 August 2006 President Bush travels Monday to America's Gulf Coast as the region marks the passage of one year since Hurricane Katrina hit landfall. The president plans to visit with storm survivors and inspect reconst

发表于:2019-01-13 / 阅读(233) / 评论(0)

2006年VOA标准英语（八月）

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(232) / 评论(0)

VOA标准英语2016年(九月)

2007年VOA标准英语-Africans Say G-8 Not Fulfilling Aid Promise

By Phuong Tran Dakar 05 June 2007 Hundreds of people from West Africa are gathering in Sikasso, Mali, this week, to bring attention to problems they say developed countries are ignoring. The anti-globalization and anti-poverty campaigners call their

发表于:2019-01-16 / 阅读(231) / 评论(0)

2007年VOA标准英语（六月）

2007年VOA标准英语-Rice Presses Gulf Arab States for Support on Ir

By David Gollust Kuwait City 16 January 2007 U.S. Secretary of State Condoleezza Rice is in the Gulf region, trying to persuade America's Arab allies to actively support President Bush's new strategy for quelling violence in Iraq. The mainly Sunni Mu

发表于:2019-01-25 / 阅读(250) / 评论(0)

2007年VOA标准英语（一月）

2006年VOA标准英语-Gulf Coast Attempts to Recover from Hurric

By Greg Flakus Gulfport, Mississippi 08 February 2006 watch Recovery report The devastation caused by flooding in New Orleans following Hurricane Katrina continues to dominate headlines here and inter

发表于:2019-01-25 / 阅读(216) / 评论(0)

2006年VOA标准英语（二月）

Gulf Arab countries forecast high returns for renewable energy

DUBAI, Dec. 22 (Xinhua) -- The Abu Dhabi-based International Renewable Energy Agency (IRENA) said Saturday the six GCC countries' returns through renewable energy integration could hit 200 billion U.S. dollars by 2030. IRENA said in an e-mailed repor

发表于:2019-02-08 / 阅读(195) / 评论(0)

英语新闻

BP Reaches Deal for Gulf Oil Spill Lawsuits

British Petroleum has announced it has reached a multi-billion-dollar agreement with fishermen and other plaintiffs who sued over the 2010 Gulf of Mexico oil spill off the U.S. coast. BP says the $7.8 billion deal represents a partial settlement in t

发表于:2019-02-19 / 阅读(204) / 评论(0)

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ac-dc instrument

alpha-form

arteriae coeliaea

automatic sheet stacker

claused bill of landing