四硝基

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(193) / 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(169) / 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(410) / 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(413) / 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(260) / 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(195) / 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(196) / 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(148) / 评论(0) 分类 听播客学英语
学英语单词
a promise is a promise
air-raid
always excepting
apogon moluccensis
apt at
Arlas, Ar.de
backcross parent
bardrawing
blepharicerinae uenoi
boogeying
brisok
broad-classes
buckstaff
butterscotch
chlorfluazuron
chornic arthritis
coaxial duplexer
contact wear
continuous acid treating
cryocardioplegic solution
deathwatch beetle
deceleration coefficient
defthandedly
diagnostics program
dural alclad
dyse
en route high altitude chart
fine nail
four-channel auditorium control
fourteen thousand
frame counter
Gia Vien
GM_and
grooves
guarding a target
Hadad
hail from sth
Hebraists
hepatoduodenostomies
high-frequency and microwave vulcanization
ice-marginal lake
immunosuppressives
intratelomeric
iodoso
jint
John Crowe
kilopascal
Kladruby
knurling cutter
Land Rehabilitation
leading face of blade
link-polygon
load inflation table
LPH (low pressure heater)
metacoracoid
Microtropis fokienensis
Mikrá Airport
misdistinguished
multiple access time-sharing
off-off-Broadway
on-vehicle
open gear pair
pated
peony families
Peteha
phenylethanolamine
phthisiomania
pilot well
pimpinellae radix
pitch adder
plate like structure
post-cart
preliminary installation plan
prestressed reinforced concrete
protoplast regeneration
public nudity
public trusts
receiving objective
restitching
Rāhatgarh
secondary standard file
sequins
sheriff-deputes
silencing of noise
simple difference set
sink unit
struck sender
supervision of residence
T-net
tachistoscopic
take ... to extremes
tegumentary nerves
test report
three notes to one
torsion test
two-dimensional quantitative structure activity relationship
tyrells
Van Dyck
vector current
Vogel-Fulcher relation
xerodermic idiocy syndrome
yedding