间羟苯基甘氨酸

Many of the Burgess specimens have now been assigned to living phyla just where Walcott put them in the first place. 许多布尔吉斯标本现在已经归到活着的动物的门里就是沃尔科特最初放置它们的地方。 Hallucigenia and s

发表于:2018-12-18 / 阅读(100) / 评论(0) 分类 万物简史

This is Scientific Americans 60-Second Science. Im Steve Mirsky. Got a minute? To keep your car purring, you have to change the oil. Such maintenance produces eight billion gallons of used motor oil annually. Some waste oil does get re-refined to pro

发表于:2018-12-24 / 阅读(89) / 评论(0) 分类 Scientific American(三)月

This is Scientific American's 60-Second Science. I'm Karen Hopkin. This will just take a minute. As Valentines day approaches, remember, its the thought that counts. Just ask a decorated cricket. Because according to a study published in the January

发表于:2018-12-24 / 阅读(82) / 评论(0) 分类 Scientific American(一)月

Fun Fact: Alligators Can Regrow Teeth 有趣的事实:短嘴鳄可以再长牙齿 Fun fact about alligators: they can regrow any of their eighty teeth up to fifty times. Which is pretty impressive, especially compared to us relatively dentally chal

发表于:2018-12-28 / 阅读(53) / 评论(0) 分类 初学者听力文摘精选

its time again for the A Moment of Science mailbag. A listener writes: Dear A Moment of Science, Ive always been fascinated by volcanoes. So I was wondering: How well can scientists predict when and where a volcano will erupt? Intersting question. Th

发表于:2018-12-31 / 阅读(48) / 评论(0) 分类 英语听力文摘 English Digest

Humulone 律草酮 Huperzine Serrate P.E 千层塔提取物 Hydroginkgolic acid 氢化白果酸 Hydroginkgolinic acid 氢化白果亚酸 p-Hydroxyacetophenone 对羟基苯乙酮 p-Hydroxybenzylalcohol

发表于:2019-01-03 / 阅读(74) / 评论(0) 分类 医务英语

This is Scientific American's 60-Second Science. I am Steve Mirsky.Got a minute? Talk about your vicious cycles. A new study finds that belly fat could be making you hungrier. Which would lead to more belly fat. The research was performed at the Univ

发表于:2019-01-08 / 阅读(93) / 评论(0) 分类 Scientific American(四)月

Algae seem harmless enough. These precursors to plants thrive throughout the world's waters. But these single-celled plants have global consequences. We can thank them for oxygen in the atmosphere, oil in the lithosphere as well as dead zones in the

发表于:2019-01-08 / 阅读(93) / 评论(0) 分类 Scientific American(十一)月

Researchers Say Malaria Drug Could Also Treat Cancer Scientists know that human cancer cells grow by getting energy from adjacent tumors, where cells have begun to self-destruct. The spread of cancer is accelerated by the death of these cells. This p

发表于:2019-01-13 / 阅读(103) / 评论(0) 分类 VOA标准英语2012年(三月)

In January 2015, a fire in one of Russia's largest university libraries damaged more than 1 million historical documents, an incident which some media described as a cultural Chernobyl. 2015年1月,俄罗斯最大的大学图书馆之一发生了火灾

发表于:2019-02-02 / 阅读(72) / 评论(0) 分类 英语新闻

WASHINGTON, Aug. 4 (Xinhua) -- Researchers have found a way to turn mouse embryonic stem cells into sperm and this finding opens up new avenues for infertility research and treatment, according to astudy published Thursday in the online edition of jo

发表于:2019-02-04 / 阅读(204) / 评论(0) 分类 英语新闻
学英语单词
absorptive transition
accounting alternatives
adrenal hypoplasia
air-dried state
andesitic tuff
arsenolote
baptismally
beam-lead devices
biosequestration
blah blah blah
blister beetles
blueheads
boron nitride fiber
branches of non material production
buy at
Castiglione della Pescaia
cephalotrigeminal
code execution
cold vortex
composite detonator
compressed-air starter
cooley's
corporateness
courtesied
custom-designing
Davis-Gibson color filter
deck beam
degree of covering
deloss
dentoform
deviated hole
disaster reduction
dithyramb
e-strategies
earth slide
eBayers
endpoint monitoring
epithermal neutron log
exceptio res judicatae
extrudometer
Fangshan stone
fibronectin
fluoro-boron-complex
fluxilities
folli
freedom marcher
great ape
Hassi Khelifa
heat-absorbent surface
hollow cylinder implants iti
hysterologies
inessential mapping
invarable effect
Jiangsunese
karofsky
klossiella muris
knuckleball
Kurumazaka-tōge
La Mailleraye-sur-Seine
litlaagogue
many-toothed blackfish
mariesii
marvista
median immunizing dose
Microtatorchis
mitchella
monatomic gas
motor bus
Nové Město nad Moravě
of great concern
on-track equipment
optical tracking satellite
Palazzo, Pta.
palmitaldehyde
pattern-cuttings
pentz
planer fixture
polynomiography
provider billing
pyrometric probe
requestable
ring once
ritterman
rotation viscosimeter
section engineer
selecting unit
setting jointer
smeared-out
stream centerline
swing boom cylinder
tangential method
tapley
test series
tischer
to lie upon the lurch
tranceful
underway replenishment
viscous remanence
worth reading
Zither-banjo