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This is Scientific American Sixty Seconds Science, I'm Sophie Bushwick, got a minute? When Mexican tetra fish moved into darker caves long ago, they evolved to deal with the dark by becoming albino and going blind. A new research shows that the chang

发表于:2018-12-24 / 阅读(146) / 评论(0) 分类 Scientific American(一)月

Sorry,thereisnottexttemporarily,Pleasehelptingroomtolookforit! 如果您能找到更好的听力原文,请发贴到 听力原文收集区 ,您将会获得10到30积分的奖励! Thankyou! 棒棒学英语 爱探险的朵拉 BBC儿童动画-小猪威

发表于:2019-01-01 / 阅读(166) / 评论(0) 分类 美国学乐经典动画100(MP3下载)

T Tanshinone IIA 丹参酮IIA Tanshinone I 丹参酮I Tanshinone IIB 丹参酮IIB Taraxasterol 蒲公英甾醇 Taraxerol 蒲公英赛醇 Tauro ursodesoxy cholic acid 牛磺熊去氧胆酸 Taxifolin 花旗

发表于:2019-01-03 / 阅读(130) / 评论(0) 分类 医务英语

pH - a measure of how acid or alkali a solution is. As the pH gets lower, the solution is more acid. At a pH of 7 the solution is neither acid nor alkali. pH is the inverse of the logarithm of the con

发表于:2019-01-03 / 阅读(124) / 评论(0) 分类 医务英语

This is Scientific American's 60-Second Science. I'm Cynthia Graber. This will just take a minute. Batteries of the future need to deliver more energy, and they need to be smaller. Researchers at MIT think they have developed a technology that can, a

发表于:2019-01-08 / 阅读(149) / 评论(0) 分类 Scientific American(四)月

By Alisha Ryu Nairobi 22 June 2007 In another major setback for international efforts to bring peace to Somalia, a violent power struggle between two sub-clans in the port city of Kismayo is fueling fear that an all-out clan war could erupt at any ti

发表于:2019-01-13 / 阅读(157) / 评论(0) 分类 2007年VOA标准英语(六月)

By Alisha Ryu Nairobi 01 January 2007 Somalia's interim governments says it has captured the Islamic Movement's Women wait to be brought at a funeral of a family that died from an unknown explosion in Mogadishu, 31 Dec 2006 last stronghold, followin

发表于:2019-01-13 / 阅读(146) / 评论(0) 分类 2007年VOA标准英语(一月)

By Alisha Ryu Nairobi 28 September 2009 A power struggle between Islamist insurgent groups in Somalia's strategic southern port town of Kismayo is threatening to turn violent and tear the alliance apart. The rift between al-Shabab and Hisbul Islam I

发表于:2019-01-13 / 阅读(119) / 评论(0) 分类 VOA标准英语2009年(九月)

DAVID GREENE, HOST: Comedian Zach Galifianakis is still best known for his role, Alan, in The Hangover movies. (SOUNDBITE OF FILM, THE HANGOVER) ZACH GALIFIANAKIS: (As Alan) There is a tiger in the bathroom. ED HELMS: (As Stu) What's going on? GALIFI

发表于:2019-01-16 / 阅读(138) / 评论(0) 分类 2017年NPR美国国家公共电台2月

10 Getting The Lead Out 第十章 把铅撵出去 In the late 1940s, a graduate student at the University of Chicago named Clair Patterson (who was, first name notwithstanding, an Iowa farm boy by origin) was using a new method of lead isotope measur

发表于:2019-02-17 / 阅读(156) / 评论(0) 分类 万物简史
学英语单词
Achikouya, Plat.des
adiabatic condensation pressure
alternating movement
aminoheterocyclic compound
Anstie's test
antiskid deck paint
aonidiella aurantii
archpresbytery
Armenian massacres
bald spots
belch out
break load
Bufo canorus
C. A. R.
cadium photocell
caesio digramma
Castaneda's vaccine
centrifugal filter
Clenshaw-Curtis integration
coal-derived liquid
computer-assisted numerical technique
consequentness
corn-leaf aphid
Cree R.
cum-dividend
days-old
decency lobby
Defense Satellite Communications System
demeanors
demonstrate against
denneys
derived factor demand
diabetess
differential shunt motor
dorkified
ducksworths
energy interval
etal.
excavating depth
expenditures on new plant and equipment
extracodes
fan type aeroengine
fibrin calculus
Folling
gauze room
gileads
hitting the skids
hydropower resources
inkballs
insequent drainage
inspection assorting process
installation testing
intelligence factor
invert level
Keaton
limbach
lite-on
low-level strafing
mad cow
main feed check
maximum milling width
Micromelinae
multiple zone completion
munkacsy
Neipu Township
nonvaricose
nursers
nursh
onomatologists
optic lobes
pay and display
perspectives
phylogeny,phylogenesis
phytidium rugosum(ehrh.)kindl.
pliant hedge
pre-irradiation grafting
radar departure
reactor pressure vessel internals
recessing machine
reciprocating plate and worm type distributor
regional marketing
resler
reverse a.c. resistance
rotten tie
school innovation
sectoris coconis
Seighford
sequax
side doors
single-Vee groove with root face
six ply tire
skull-caps
snufter
statutory limits
streamsink
swings at
taper clamping sleeve
transmittings
transpiration-cooled blade
Trypanosoma luis
westgard
XDIS.