地平俯角

These discoveries raised the stakes. Here was a planet similar to our own. Mars might not have cities or civilizations. But it could be home to other smaller life forms like microbes. Chris McKay is N

发表于:2018-12-07 / 阅读(89) / 评论(0) 分类 火星生命

I think it is exciting. Because it would imply that if life arose independently on Mars. The implication is that life is pervasive throughout the universe. This is why Mars has so obsessed scientists.

发表于:2018-12-07 / 阅读(71) / 评论(0) 分类 火星生命

Rice had seen the same thing in Iceland, one of the few places on Earth with similarities to Mars. It too is extremely cold, and most of the water is frozen into glaciers. And also like Mars, buried u

发表于:2018-12-07 / 阅读(65) / 评论(0) 分类 火星生命

For Mars to have rivers, it must once have had streams, rain, clouds and an atmosphere, a planet just like the Earth today-if these were rivers. They had to be sure. The answers would come in 1998 wit

发表于:2018-12-07 / 阅读(74) / 评论(0) 分类 火星生命

William Boynton is professor of planetary sciences at the University of Arizona. And he's dedicated his life to looking for water on Mars. The link between life and water is very strong. Even here in

发表于:2018-12-07 / 阅读(89) / 评论(0) 分类 火星生命

Of course over our Super Bowl black party be, special here New Orleans, there a little food, yeah chef, thats what I am talking about. Of course the great Emeril Lagasse is already there at Super Bowl Centre, he is in Miami. Gona be seeing him soon b

发表于:2018-12-11 / 阅读(84) / 评论(0) 分类 访谈录2010

Of course, any terraforming is still a long way off. The next few expeditions to Mars will definitely be made by machines. NASA, are sending 2 rovers, capable of travelling over 100 meters a day in se

发表于:2019-01-02 / 阅读(78) / 评论(0) 分类 火星生命

Well, hearing that Odyssey had found subsurface water on Mars was enormously exciting for somebody who is involved in planning to send humans to Mars. Water has a number of important uses for us. At t

发表于:2019-01-02 / 阅读(99) / 评论(0) 分类 火星生命

Life on Earth is basically proteins and DNA, so we can wonder if there is life on Mars will also be DNA and proteins, the same type of DNA, the same type of proteins. One might think that DNA is such

发表于:2019-01-02 / 阅读(88) / 评论(0) 分类 火星生命

But there was something even better. Odyssey may not just have found ice. There may also be liquid water, and that means, there could be living creatures there too. Right now, there might be liquid wa

发表于:2019-01-02 / 阅读(104) / 评论(0) 分类 火星生命

But they never got there. The first disappeared into deep space. Another missed its target when its coordinates were confused. One NASA control center was working in metric, the other in feet and inch

发表于:2019-01-02 / 阅读(101) / 评论(0) 分类 火星生命

The ground here is permafrost, a mixture of soil and ice frozen together. A group of Russian scientists have teamed up with NASA to drill down into it in search of microorganisms. It's work that's bee

发表于:2019-01-02 / 阅读(98) / 评论(0) 分类 火星生命

One of these wavelengths corresponds to hydrogen, another wavelength would be iron. Another wavelength would be oxygen. And so you go to the part of the spectrum you are interested in and you see you'

发表于:2019-01-02 / 阅读(94) / 评论(0) 分类 火星生命

Oil prices in Asia slipped briefly below $60 a barrel for the first time in more than 18 months, then rallied to $61, after a two-day plunge. From Sydney, Phil Mercer reports. Analysts say that worries over the state of the world economy and prospec

发表于:2019-01-13 / 阅读(102) / 评论(0) 分类 VOA标准英语2008年(十一月)

A Hindu holy man, waves the Indian national flag as he takes a holy dip in the River Ganges, holy to Hindus, during the main Royal Bath at the Kumbh Mela festival in Haridwar, India, 14 Apr 2010 In the northern Indian town, Haridwar, millions of Hind

发表于:2019-01-13 / 阅读(101) / 评论(0) 分类 VOA标准英语2010年(四)月

ARI SHAPIRO, HOST: The price of cocoa has collapsed on international markets. That's devastated hundreds of thousands of small farmers in West Africa, which produces most of the world's cocoa. Alex Duval Smith reports from San Pedro in Ivory Coast, t

发表于:2019-01-16 / 阅读(87) / 评论(0) 分类 2017年NPR美国国家公共电台3月

While European investors are becoming increasingly skeptical about Greece, Ireland, Italy, and Spain's ability to recover from the economic crises, EU governments are having a difficult time coming up with a unified stance on how to deal with the iss

发表于:2019-01-19 / 阅读(87) / 评论(0) 分类 世界各地新闻集锦

今天我们要学的词是dip. Dip is spelled d-i-p, dip. Dip的意思是下降,下沉。比如,The 30-year fixed mortgage rate dipped again last week. 30年期固定抵押贷款利率上个星期再次跌落。根据一项统计,In the U.S.,

发表于:2019-02-07 / 阅读(75) / 评论(0) 分类 英语单词荟萃

By Daniel Schearf Bangkok 09 October 2009 Burma's detained democracy leader Aung San Suu Kyi has been allowed a rare meeting with Western diplomats to discuss sanctions against Burma. Burmese authorities allowed Aung San Suu Kyi Friday to meet with

发表于:2019-02-16 / 阅读(76) / 评论(0) 分类 VOA标准英语2009年(十月)

STEVE INSKEEP, HOST: Several kinds of people are directly affected by the partial government shutdown. There are federal workers who are furloughed, not being paid. There are federal workers who must work and are also not being paid. They may get bac

发表于:2019-03-04 / 阅读(137) / 评论(0) 分类 2019年NPR美国国家公共电台1月
学英语单词
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a remote circumstance
access, burst
acetyl-alpha-methylfentanyl
Agrabad
alcohol engine
aminuria
antichoromanic
applied protein chemistry
average total seat
awakest
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be on one's own
berg's diver method
Bingfeng (SI12)
blackish-gray antshrike
blood spirochaete
business promotion
Camarasa, Embalse de
carpogenous
cavalry-men
Cherlak
civil aeronautics act
collet attachment
cortone acetates
cost-book
current noncurrent method of translating
Customs Bureau
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durable years
face classification
facultative parasites
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full-height
goodrick
GOSUB
Great Sugar Loaf
gustav
helical blade
hidrocystomatosis
high egg passage
Hilum splenicum
himachalane
hot-well depression
humic podzols
immune lactoglobulins
jeanjerking
jecca
Jonestowners
keeps a low profile
kerkorian
korou
light-harvesting center
make - up torque
make progress in
mastura
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MedExpress
mid-cycles
mildclay
mill supply wholesalers
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new year's eve
overall strain
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Riedenheim
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Septum scrotale
slow bend test
space-saver
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sulfoglycerol
syndey
takes steps to
test target
Tilia heterophylla
tilting tray
transverse g load
trenching machine
uncorrected result
untreated sleeper
water renovation
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zona intermedia recti
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