标签：spectrum 相关文章

Supermassive Black Holes 超大质量黑洞 - 3

A supermassive black hole is quite simply gravity gone mad. An object of such concentrated matter its gravitational pull is insatiable. Nothing can escape it, not even light itself. Anything that gets

发表于:2018-12-07 / 阅读(366) / 评论(0) 分类 超大质量黑洞

VOA慢速英语2013 健康报道 - 儿童自闭症的早期迹象

Health Report - Watching for Early Signs of Autism in Babies 健康报道 - 儿童自闭症的早期迹象 From VOA Learning English, this is the Health Report in Special English. 这里是美国之音慢速英语健康报道。 Children with autism

发表于:2019-01-12 / 阅读(80) / 评论(0) 分类 2013年VOA慢速英语(一)月

VOA标准英语2012--NY Libraries Serve as Job Placement Centers

NY Libraries Serve as Job Placement Centers Despite having a master's degree in finance, Sushana Guthrie was unemployed for two years before opening her small tax consulting business this past December in New York. Mindful that many new businesses fa

发表于:2019-01-13 / 阅读(132) / 评论(0) 分类 VOA标准英语2012年(三月)

VOA标准英语2010年-A Most Unusual College: No Textbooks A

St. John's College looks like a typical American college. But what goes on inside its classrooms is unlike just about every other college in the United States. At this small institution, about 60 kilometers north of Washington, D.C., every student is

发表于:2019-01-13 / 阅读(94) / 评论(0) 分类 VOA标准英语2010年(五)月

VOA标准英语2010年-Researchers Say Several Factors Contri

Scientists don't know what causes autism, but besides a genetic predisposition, they are now focusing on environmental exposure, or a combination of the two. A conference on autism is taking place in (the eastern state of) Pennsylvania. The aim is to

发表于:2019-01-13 / 阅读(90) / 评论(0) 分类 VOA标准英语2010年(八)月

VOA标准英语2010年-Regulation Can't Keep Pace with Livest

Livestock production is growing faster than the capacity of nations to safely and responsibly manage it, according to the United Nations' Food and Agriculture Organization. In the latest edition of its flagship report, The State of Food and Agricultu

发表于:2019-01-13 / 阅读(80) / 评论(0) 分类 VOA标准英语2010年(二月)

VOA英语2010年-India Parliament Deadlocked Over Corruption

India's parliament ended its winter session deadlocked over a massive corruption scandal. The government and the opposition disagree over how to investigate the allegations of graft that have erupted over the sale of telecommunication spectrum licens

发表于:2019-01-13 / 阅读(79) / 评论(0) 分类 VOA标准英语2010年(十二)月

VOA标准英语2011--Online Video Service Targets Infants

Online Video Service Targets Infants These days it seems like American television and videos have us in their clutches from cradle to grave. On the grave side, the Home Box Office cable-TV show Six Feet Under, about a family-owned funeral home, ran f

发表于:2019-01-13 / 阅读(59) / 评论(0) 分类 VOA标准英语2011年(七月)

VOA常速英语2016--儿童早教节目，是对是错？

儿童早教节目，是对是错？ These days it seems like American television and videos have us in their clutches from cradle tograve. On the grave side, the Home Box Office cable-TV show Six Feet Under, about afamily-owned funeral home, ran for

发表于:2019-01-14 / 阅读(64) / 评论(0) 分类 VOA标准英语2016年(七月)

2016年美总统选举提前打响

2016年美总统选举提前打响 Millions of Americans on opposite sides of the political spectrum have expressed this discontent with politics as usual. And they seem to think that few of the latest crop of presidential hopefuls can offer anything

发表于:2019-01-14 / 阅读(90) / 评论(0) 分类 VOA标准英语2015年(十二月)

Off-beat Candidates Take Center Stage in US Election Campaign

Off-beat Candidates Take Center Stage in US Election Campaign WASHINGTON Two unusual candidates, one Republican and one Democrat, dominate the early stages of the U.S. presidential campaign. It is far too early to predict who will be the candidates f

发表于:2019-01-14 / 阅读(139) / 评论(0) 分类 VOA标准英语2015年(八月)

美国国家公共电台 NPR Netflix, ABC Portrayals Of Autism Still Fall Short, Critics Say

ARI SHAPIRO, HOST: One of the best-known depictions of autism in a major film is Dustin Hoffman's character in the Oscar-winning 1988 film Rain Man. (SOUNDBITE OF FILM, RAIN MAN) DUSTIN HOFFMAN: (As Raymond) Maple syrup was supposed to be on the tabl

发表于:2019-01-16 / 阅读(100) / 评论(0) 分类 2017年NPR美国国家公共电台8月

科学美国人60秒 SSS 一条小鱼

Hundreds of millions of years ago a humble fish swam in the lakes and rivers of the supercontinent Gondwana. Eventually Gondwana broke apart, becoming the continents we know today. And the descendants of that fish, now called cichlids, continue to sw

发表于:2019-01-20 / 阅读(96) / 评论(0) 分类 2017年Scientific American(三)月

2015-05-01 BBC:星光七纪元-30

And so i can see that there is hydrogen being produced by the supernova, and over here the yellow orange light is due to glowing atoms of sodium, it's the same sodium glow that we saw when I sprinkled the chemical into the fire, these ones here in th

发表于:2019-01-23 / 阅读(109) / 评论(0) 分类 探索与发现2015年

奥巴马每日发言As Prepared for Delivery(2009-03-09)

暂无音频 Remarks of President Barack Obama As Prepared for Delivery Signing of Stem Cell Executive Order and Scientific Integrity Presidential Memorandum Washington, DC March 9, 2009 Today, with the Executive Order I am about to sign, we will bring

发表于:2019-01-26 / 阅读(117) / 评论(0) 分类 美国总统每日发言

VOA标准英语2010年-Hitting the Road and Staying at Home -

America is full of vacation lodges . . . on wheels! They are known as motor homes - literally kitchens, living rooms, and beds on the move across America. There are more than 1.5 million of these self-propelled rolling dwellings in the United States.

发表于:2019-02-02 / 阅读(74) / 评论(0) 分类 VOA标准英语2010年(三月)

VOA标准英语2010-Death Rates Higher in Non-White American

A new study finds racial and ethnic disparities in children's health are pervasive in the United States. Related Links: Full text Policy Statement on Health Equity and Children's Rights Asian, African-American, Hispanic, and Native American children

发表于:2019-02-03 / 阅读(80) / 评论(0) 分类 VOA标准英语2010年(四)月

2018年CRI China to provide assistance for disabled children: official

China will establish a new rehabilitation and assistance system for children with disabilities, providing them with a wide range of medical and social services, according to an announcement made by the country's cabinet, the State Council. Nearly 1.6

发表于:2019-02-14 / 阅读(92) / 评论(0) 分类 2018CRI中国国际广播电台

科学美国人60秒 SSS 小蝙蝠能学会不同的方言

Baby Bats Can Learn Different Dialects Bats are sophisticated communicators. And not just when theyre in vampire form. New research finds that Egyptian fruit bats actually have regional dialects, depending on the bat chatter that surrounds them as th

发表于:2019-02-14 / 阅读(101) / 评论(0) 分类 2018年科学美国人1月

英语听书《海底两万里》第215期 第16章 在海底平原散步(6)

Soon, scarcely blurred by their distance from us, the forms of some objects took shape before my eyes. 走了一会儿，看见前面有些东西，虽然形象仅仅在远方微微露出，但轮廓已清楚地在我眼前浮现。 I recognized the

发表于:2019-02-25 / 阅读(98) / 评论(0) 分类 《海底两万里》中英双语有声读物
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