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[00:52.51]Please say something about it? [02:14.48]In 1924,Mallory and team of British climbers [02:22.34]tried to get to the top of Mount Qomolangma, [02:29.00]the tallest mountain in the world. [03:05.26]No one had ever done it before. [03:25.61]Ma

发表于:2018-12-01 / 阅读(123) / 评论(0) 分类 初中英语人教版初三

Conditions on Mars were so harsh that it was hard to imagine any life surviving there. The idea of sophisticated aliens was wiped out. We know that conditions on Mars today are not very good for life.

发表于:2018-12-07 / 阅读(95) / 评论(0) 分类 火星生命

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(124) / 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(95) / 评论(0) 分类 火星生命

In 2001 a new NASA probe was launched. Called Odyssey, it was sent to Mars to carry out the most detailed analysis ever of the planet’s surface. What it has discovered may be about to answer one of

发表于:2018-12-07 / 阅读(81) / 评论(0) 分类 火星生命

But even if there had been water, life doesn't start overnight. Even a simple microbe is the product of complex chemical systems that take millions of years to evolve. Had the water lasted long enough

发表于:2018-12-07 / 阅读(84) / 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(105) / 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(115) / 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(111) / 评论(0) 分类 火星生命

'Deepwater Horizon' Honors The Sacrifice Without Sacrificing The Action play pause stop mute unmute max volume 00:0003:02repeat repeat off Update Required To play the media you will need to either update your browser to a recent version or update you

发表于:2018-12-18 / 阅读(78) / 评论(0) 分类 2016年NPR美国国家公共电台10月

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(99) / 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(120) / 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(110) / 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(127) / 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(132) / 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(128) / 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(116) / 评论(0) 分类 火星生命

ONE MISTY MOISTY MORNING One misty moisty morning, When cloudy was the weather, I chanced to meet an old man, Clothed all in leather. He began to compliment And I began to grin. How do you do? And how do you do? And how do you do again?

发表于:2019-01-09 / 阅读(420) / 评论(0) 分类 鹅妈妈童谣

RACHEL MARTIN, HOST: Eight years ago today, an explosion on the Deepwater Horizon drilling rig killed 11 people and led to a massive oil spill in the Gulf of Mexico. The accident prompted big changes in how the country regulates offshore drilling. No

发表于:2019-01-16 / 阅读(93) / 评论(0) 分类 2018年NPR美国国家公共电台4月

节奏布鲁斯:Boyz II Men - Misty blue 相关介绍 :Boyz II Men成立于1988年,其四个成员Shawn Stockman(1972.9.26--)、Wanya Morris(1973.7.29--)、Nathan Morris(1971.6.18--)以及Micheal McMary(1972.12.16--)都是费城音乐学校(the

发表于:2019-02-06 / 阅读(79) / 评论(0) 分类 节奏布鲁斯
学英语单词
abbrevy
Acecolex
agenesis of lung
almaraz
anthrohistory
antilymphocyte
arrangement of fish
asphaug
be no skin off someone's nose
bikeways
bloomingness
bousouki
boutelle
bulbocavernosi
canaliculated
capacity shunt ammeter
cheveresu mare
cikobia-i-ra (thikombia i.)
coal tar distillate
concur with sb
corpotendons
cyclohexanetetrol
decibl with reference to one milliwatt
dinitrophenylhydrazines
double check valve
double squirrel cage motor
downlock switch
dynamics of particle system
easy-chair
Ellenborough
envelope material
estuarial
eucalyptol resorcinol
filter color
flight-plans
foundershaft
ganglia isthmi
give oneself out to be
grim file reaper
herniation of the nucleus pulposus
hydraulic transmission
ill-houseds
impressum
in the first half
kirkel
kotlowski
letdown line
lever-type feedback
liquid-state diffusion
macro processing instruction
magnesium soap
mandators
metalloregulatory
microbacterium mesentericum
monoureide
motor on/off switch
nadirscope
natural actinic effect
natural landscape zone
nonsedative
nuclear delay
overjoyed
paired river terrace
Palestinianize
parellel terminal
passenger cable railway
Pazin
pectus alare
phenylacetyl chloride
protein maintenance requirement
quantitative analyze
radiation of energy
recording plan
remystified
repodral
ribopolymer
rudy
schlechteri
sclerocentesis
self healing capacitor
Shichinohe-gawa
silviana
simple lateral eyes
simple pustule
society publication
sorbinoses
surgical case
symbolic text editor
Talpetate
tantarum
tectonicist
transient species
trib.
typhlotransversostomy
U)
ultrafaxes
whitefeller
whole core analysis
Work Mouth
Yin Chaung
ziploc bag