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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(458) / 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(467) / 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(366) / 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(164) / 评论(0)

2011年VOA慢速英语(十一)月

2007年NPR美国国家公共电台四月-Dolphins Dodge Danger in the Bosphorus St

Time again for StoryCorps, traveling the country recording your stories. Last week, we heard remembrances of the Great Depression. Today, we revisit that time with sisters Evelyn Palmour and Doreene McCoy. They were just children when the Depression

发表于:2018-12-19 / 阅读(209) / 评论(0)

2007年NPR美国国家公共电台

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(145) / 评论(0)

温馨夜读II

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(194) / 评论(0)

电影歌曲

迈克尔.杰克逊：Speachless

迈克尔.杰克逊：Speachless Speachless 无言 Your love is magical, thats how I feel 你的爱是如此的不可思议，这就是给我的感觉 But I have not the words here to explain 我岂能用言辞去形容 Gone is the grace for expressi

发表于:2019-01-03 / 阅读(241) / 评论(0)

迈克尔杰克逊经典歌曲

The Ass，the Ox and the Birds

An ass and an ox，fastened to the same yoke，were draging a waggon．While the ox was pulling with all his might he he broke a horn．The ass swore that he had got no help whatever from his weak companion．Exerting himself in the labour，the ox b

发表于:2019-01-09 / 阅读(246) / 评论(0)

趣味英语

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(174) / 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(197) / 评论(0)

VOA标准英语2016年(九月)

加州英语分级GK Paul Bunyan and the Blue Ox 09

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发表于:2019-03-02 / 阅读(219) / 评论(0)

加州英语分级GK

加州英语分级GK Paul Bunyan and the Blue Ox 08

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发表于:2019-03-02 / 阅读(251) / 评论(0)

加州英语分级GK

加州英语分级GK Paul Bunyan and the Blue Ox 07

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发表于:2019-03-02 / 阅读(211) / 评论(0)

加州英语分级GK

加州英语分级GK Paul Bunyan and the Blue Ox 06

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发表于:2019-03-02 / 阅读(211) / 评论(0)

加州英语分级GK

加州英语分级GK Paul Bunyan and the Blue Ox 05

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发表于:2019-03-02 / 阅读(242) / 评论(0)

加州英语分级GK

加州英语分级GK Paul Bunyan and the Blue Ox 04

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发表于:2019-03-02 / 阅读(225) / 评论(0)

加州英语分级GK

加州英语分级GK Paul Bunyan and the Blue Ox 03

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发表于:2019-03-02 / 阅读(208) / 评论(0)

加州英语分级GK

加州英语分级GK Paul Bunyan and the Blue Ox 02

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发表于:2019-03-02 / 阅读(228) / 评论(0)

加州英语分级GK

加州英语分级GK Paul Bunyan and the Blue Ox 01

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发表于:2019-03-02 / 阅读(247) / 评论(0)

加州英语分级GK

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学英语单词

aacu

Adansonia L.

air-entraining hydraulic cement

AMACO

aminophosphines

application of fertilizer