四硝基萘

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(104) / 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(89) / 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(319) / 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(313) / 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(169) / 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(102) / 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(113) / 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(85) / 评论(0) 分类 听播客学英语
学英语单词
a.t.p.
Acalypha matsudae
acute form
admissible count rate
Aedes scapularis
AGP slot
Alpagut
anti-subsidy duty
appressed
atob
autocovariance
Babylonian Captivity
bald-pated
Bishopdale
bizarre nucleus
blast gauge
bronze ordiary
cauterion
circinal
container load activity meter
control of construction quality
coordination of supplies
countermand of a check
Demoivre's formula
demoscene
Dewy Rose
draw vise
dusty money
dynamic state approach
educational propaganda
empty category
Fernandel
fine tuning
finned type heating coil
fluororoentgenography
front-end concentrator
GCT
gub'mint
hard-news
HDSL
henriksen
hermenegildo
hexatomic acid
hubbubbed
illumination standard
in absolute cash terms
in panic
income and expenditure accounts
insect survey
interconnected system
kebles
kernel ice
Kosovo conflict
kymelen
laborlore
layout line
Lombelombe
lorentzs
loss forward
low temperature distillation
megascolecids
modulus selection
nanoconductor
neurone doctrine
niggardlier
nonmorphometric
open rectangle
optimum relay servomechanism
Orange GGN
Pekes
Pfyn
pleasureness
posterior parietal artery
preformationists
put on foot
Radiotelegram.
rapid fatigue test
red blood cell life span
regiones nasalis
remittance house
rent and rates
rim type sprocket
rock forming minerals
senecio vulgariss
senhors
shadowings
spectral detectivity
spiedino
stemplot
subbiconic
subnet number
superstimulate
Swiss-cheese hyperplasia
synchro-control transformer
tidal flood current
time amplitude
time varying
transit trunk
triamorph
twin screw
Tyomycin
waltziest