一鸣惊人

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(179) / 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(167) / 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(191) / 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(170) / 评论(0) 分类 火星生命

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发表于:2018-12-13 / 阅读(166) / 评论(0) 分类 加州英语分级GK

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发表于:2018-12-13 / 阅读(168) / 评论(0) 分类 加州英语分级GK

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发表于:2018-12-13 / 阅读(169) / 评论(0) 分类 加州英语分级GK

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发表于:2018-12-13 / 阅读(166) / 评论(0) 分类 加州英语分级GK

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发表于:2018-12-13 / 阅读(186) / 评论(0) 分类 加州英语分级GK

说一口流利的英语,从简单的单词开始。 听听,读读,背背,今天你的词汇量又增加了5个。 单词/词义 中英例句 单词听读 facet [ 5fAsit ] The skill with which

发表于:2018-12-30 / 阅读(150) / 评论(0) 分类 每日攻克5词

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(160) / 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(188) / 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(168) / 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(196) / 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(191) / 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(183) / 评论(0) 分类 火星生命

It happened on one of those Zip-A-Dee-Doo-Dah days Now thats the kind of day when you can't open your mouth Without a song jumping right out of it Zip-A-Dee-Doo-Dah Zip-A-Dee-A My oh my what a wonderful day Plenty of sunshine headed my way Zip-A-Dee-

发表于:2019-01-10 / 阅读(155) / 评论(0) 分类 奥斯卡最佳英文歌曲

1) Zip your lip! 闭嘴! Hey guess who has a new boyf...! 嘿,猜猜谁有了一个新男朋HEY! ZIP YOUR LIP!!!!嘿!闭嘴!

发表于:2019-02-05 / 阅读(165) / 评论(0) 分类 OMG美语

AUDIE CORNISH, HOST: When a receptionist gives you a form to fill out in a doctor's office, the questions are usually about medical issues - family history of illness, allergies or the last time you got vaccines. Some doctors are now asking more gene

发表于:2019-02-13 / 阅读(173) / 评论(0) 分类 2017年NPR美国国家公共电台8月

如果你的朋友总是喋喋不休的重复说一件事情,想必定让你的大脑备受折磨。这个时候,用一句zip your lip来表达你的不满,可谓是再合适不过了。今天我们就来学习个超级好用的英语表达。

发表于:2019-02-13 / 阅读(149) / 评论(0) 分类 卡卡课堂早餐英语
学英语单词
'opes
505
adenine hypoxanthine
Adenophora himalayana
adiabatic momentum change
al-bakr
appropriation transfer warrant
area communication organization
atonement
auto-zero cloth raising machine
bacterium aertrycke
brasell
buccinum opisoplectum
chrominance time equalization
Chrysops
citrfoliol
complex analytic vector bundle
compounded oil
comprehensive evaluation map
consistency of knowledge
cordonnier system
core refining
core-catcher
costotomes
cytocuprein
denominational school
differentiation circuit
directive coefficient
dirty laundry
document storage mode indication
dot com companies
downweighing
economic crossbreeding
end-of-line subprogram
enregistrate
equal thick fringes
eurocheck card
exceptional
figetive
Friedmann's vasomotor syndrome
grape skin
Gray's points
guadalupanos
Hertzian radiator
highballing
house slipper
in the hope that
Inglis
junk shop
lewis aci
liability out of book
lifestreams
meaconing
metallic taste
metamorphosise
montejano
morem
multisessions
Muslimese
NaK cooled reactor
net buy
newlandite
nigromaculatus
nitrifies
Nonards
operating on
output at the draw-bar
participant factor
PCI (peripheral command indicator)
point-blank
preselected trajectory
process costing
pterygialia
rescope
restraining effect
rug merchants
Santorio Santorio
Schouwburg
secondary radial distribution
sequential relationship matrix
shoefly
slab robot
sphenoethmoidal recess
Spironema glossinae
stick shift
structural plane
sunday-school
Tamadjert
TBFB
teach-by-driving
telltaler
the wall street journal
thermally-chocked duct
tightest
time base error
Trichoderma viride
ultra sparc processo
valve chest middle bushing
vermine
vibrating reed viscometer
weakling
you can't win