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熊果烷二醇单乙酸酯

AMERICAN STORIES - A Princess of Mars, Part Four By Edgar Rice Burroughs Broadcast: Saturday, June 25, 2005 ANNOUNCER: Now, the Special English program, American Stories. (MUSIC) ANNOUNCER: Welcome to

发表于:2018-11-27 / 阅读(460) / 评论(0) 分类 American Stories

AMERICAN STORIES - A Princess of Mars, Part Three By Edgar Rice Burroughs Broadcast: Saturday, June 18, 2005 ANNOUNCER: Now, the Special English program, American Stories. (MUSIC) Last week we broadca

发表于:2018-11-27 / 阅读(591) / 评论(0) 分类 American Stories

Astronaut: Light gray, material on either side. Oh man that's incredible... It seemed to back in the late 60s and early 70s as if America would be a space bearing nation. Plans were big, first the moo

发表于:2018-11-28 / 阅读(321) / 评论(0) 分类 疯狂英语2001年

EXPLORATIONS - Mars Exploration, Part 2 By Paul Thompson Broadcast: Wednesday, February 04, 2004 (THEME) VOICE ONE: This is Shirley Griffith. VOICE TWO: An artists picture of a Mars Rover vehicle. And

发表于:2018-12-01 / 阅读(242) / 评论(0) 分类 Explorations

EXPLORATIONS - Mars Exploration, Part 1 By Paul Thompson Broadcast: Wednesday, January 28, 2004 (THEME) VOICE ONE: This is Faith Lapidus. VOICE TWO: An artist's picture of Mars Rover Spirit. And this

发表于:2018-12-01 / 阅读(247) / 评论(0) 分类 Explorations

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(189) / 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(179) / 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(203) / 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(183) / 评论(0) 分类 火星生命

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(176) / 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(196) / 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(181) / 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(206) / 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(202) / 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(196) / 评论(0) 分类 火星生命

Stunning 'Postcard' Sent from Mars The U.S. Spirit spacecraft has sent its first color postcard from Mars. It is the sharpest image ever taken of Mars or any other planet. The image from the color pan

发表于:2019-01-04 / 阅读(161) / 评论(0) 分类 VOA2004(上)--各类新闻

By Paul Thompson Broadcast: September 17, 2003 (THEME) VOICE ONE: This is Phoebe Zimmermann. VOICE TWO: And this is Richard Rael with the VOA Special English program EXPLORATIONS. The planet Mars came

发表于:2019-01-04 / 阅读(184) / 评论(0) 分类 VOA2003(下)-美国人文故事

PARIS, Jan. 2 (Xinhua) -- Spain-based midfielder Yohan Mollo joined French top league club AS Nancy Lorraine on loan from Grenade, the club said on Monday. Mollo, 22, will play with AS Nancy Lorraine for six month with possibility to be recruited by

发表于:2019-01-09 / 阅读(211) / 评论(0) 分类 英语新闻

Mars And Venus Steps-Mars Venus You stop and I go 你停,我走 Too fast, much too slow 你快,我慢 Your uptown is downtown to me 你执着的我认为是消遣 I lose it, you find it 我丢了,你找回来 You're ahead and I'm behind it 你在

发表于:2019-01-23 / 阅读(161) / 评论(0) 分类 好听的英文歌曲

LOS ANGELES, May 25 (Xinhua) -- NASA project managers bade farewell to the Mars rover Spirit on Wednesday after sending a final set of commands to the stranded vehicle. This marks the completion of one of the most successful missions of interplanetar

发表于:2019-02-03 / 阅读(118) / 评论(0) 分类 英语新闻
学英语单词
adipokinetic
adrianas
alluphs
archaeozoic aeons
areca red
at constant prices
at regular intervals
axial power distribution
bamboo ceiling
Barneville-Carteret
be at home in
betula costata trautv.
blowhorn
branch node
Burgundy sauce
cabossed
calendar platform
call list
call the shots
cantering
centralized clock interface
cephalometric method
churubusco
cock-horse
cod-bangers
convective heat transfer coefficient
Crocco-type nozzle
crustecdysone
cypraea
daulocoris feanus
disjoined
driver disk
dye beaker
earthscraper
economic realities
epitaxial diode
evenstar
fapping
feeder box
feel test
fissure of nipple
fractionalizing
full-bottom
Funariaceae
fuqaha'
half-tap
hefces
hierarchical storage manager
Histotechnician
hyporchemata
isobutylurea
jebs
Judicial Conference of the United States
justice's court
lambda calculus
light sensitive metal
light-coupled semi-conductor switch
lineae mediana anterior
long distance carriage
madhavsinhs
maximal rate for tubular transport
melanocerite
Methopyrimazole
Micronett
Mindiptana
minor proposition
multiss
palmatures
pascent
plesiotomography
position of a chord
puccinia noli-tangere
radioactive cement
Ramree
resistance to buckling
rosaramycin
Sarcoptes bovis
series-fed vertical antenna
serse
shading wedge
shaper ratchet wheel
simplex xanthating machine
Sivrice
smithburn
somatic metosis
spoutless
stand up to
standard pyranometer
Strads
stripper plate mould
sulphur dioxide gas injury
synchisite
tap-into
three-way switches
toggle lever press
tullibee
twist-ties
vertical tube manometer
whitenest
xarardheere (harardera)