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四硝基联苯

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(145) / 评论(0) 分类 Scientific American(一)月

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

分集介绍:导数,商数,正弦和余弦 Derivatives.of.products.quotients.sine.cosine

发表于:2019-01-05 / 阅读(358) / 评论(0) 分类 麻省理工学院公开课:单变量微积分

分集介绍:导数,斜率,速度与变化率 Derivatives.slope.velocity.rate.of.change

发表于:2019-01-05 / 阅读(358) / 评论(0) 分类 麻省理工学院公开课:单变量微积分

[全屏观看] 点击右键- 另存为 可保存这个Flash影片 Silly Sausage是Nitrome于2011年5月28日发行的一款益智类游戏,它是以香肠在尽量不碰到其它损失生命物体的情况下吃光所有的钻石再到达终点为标

发表于:2019-01-08 / 阅读(204) / 评论(0) 分类 英语对接游戏

HEALTH REPORT - New Heart Drug Shows Promise in African Americans By Cynthia Kirk Broadcast: Wednesday, November 17, 2004 This is Bob Doughty with the VOA Special English Health Report. Heart failure

发表于:2019-01-30 / 阅读(142) / 评论(0) 分类 健康与经济

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(155) / 评论(0) 分类 万物简史

Today we go on a journey. It starts in Sweden over 100 years ago; and then moves to London; and finally moves to future worlds and other planets. But we start in Sweden. Alfred Nobel spent his life finding ways to blow things up. He was born in 1833

发表于:2019-02-19 / 阅读(121) / 评论(0) 分类 听播客学英语
学英语单词
aerialists
allowing for price rises
amorphous magnetic films
Appolito's suture
approach control radar
architektur
arteria choroideas
between class distance
Bovidae
Bulgarian language
carbon resistor block
caryodid
cereal bowl
Chomsky classification
chopping board
cinemascope screen
core support bracket
Curculio chinensis
delay action detonator
design upon
diaphyseal tuberculosis
diethyl (o-)phthalate
diggin' in
digital selective communication
distributed constant
donbega natalensis sond
draft out an address
dyke boring
edgewise wire
EGDN
elasticised
endless rope way
european parliamentary election
family oleandraceaes
fast - forward button
file distribution control
flat-bed truck
flycut
genus Cicuta
giant size
horizontal plan
Huasteco
humanistic discipline
in-process control
inclined course
installment interest
kekules
kernelizations
Kota Samarahan
Kylesmorar
lease automatic custody transfer
liquid crystal television watch
Lymtudor
madchen
mcluhans
melolonthas
Merger Arbitrage
meter0kilogram-second
minor salivary glands
multichannal machining
national annuity
necessity certificate
nepenthaceaes
newcombes
non-taxable transference
nonlithium
pale tussock-moth
plain wool
pneumatic tissue
pot hole
power dresser
prematerial
project lending
qualitative materiel development objective
recrowned
sample density
Sandmeyer's reaction
shepherd's-purse
silk grass
slear
sloop rig sail
slop padding
source address field
stephane mallarmes
stilt dance
strong barrier function
subcrustaceous
support dog
target filter
theory of gene starvation
through-flow heater
tirrs
transverse flexural strength core box
uniform slope
unilateralization
united atom model
utilization of forest resources
Vater's papilla
watermark magnetics
winch hook
windlown tree
wrecker's yard