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

EXPLORATIONS - October 9, 2002: George Catlin, Part 2 By Paul Thompson VOICE ONE: This is Mary Tillotson. VOICE TWO: And this is Steve Ember with the Special English program EXPLORATIONS. Today we pre

发表于:2019-01-02 / 阅读(68) / 评论(0) 分类 Explorations

By Paul Thompson VOICE ONE: This is Mary Tillotson. VOICE TWO: And this is Steve Ember with the VOA Special English program EXPLORATIONS. A new exhibit of paintings is being shown at the Smithsonian A

发表于:2019-01-02 / 阅读(69) / 评论(0) 分类 Explorations

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(60) / 评论(0) 分类 医务英语

Pro-tobacco Forces Still Strong in Many Countries A study that compiled data on three billion tobacco users worldwide, including thousands of face to face interviews, shows that global tobacco use is greatly influenced by the pro-tobacco lobby. The s

发表于:2019-01-13 / 阅读(32) / 评论(0) 分类 VOA标准英语2012年(八月)

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(71) / 评论(0) 分类 万物简史
学英语单词
2-hendecanol
?-distribution
ABLP
acoustic array
aquamephyton
Arthrothamnus
Arturo
avalanche diode integrated oscillator
bacterinia
ball tester
batchwise fractional liquid extraction
be beneath sb.'s notice
bolt-on
branchial arch
bulk supply point
cat crane
Champ, Ostrov
compression bumper
control marks
current deposit
cyanidations
czambrano
diagnosabilities
dual lattice-homomorphism
dynamic programming algorithm
enterprise system architecture
erosive vulvovaginitis
exchange war
exogastrulation
feed flavor
fishpox
four-speeds
free wagon
Gbit
grandmama
green sign
hauffs
heating pulsing
hephestic spasm
home country hypothetical tax
horsetail shape
humana
inappropriateness
intercirrus region
kalamdan
kirans
leading edge sawtooth
lymphatic tissue of respiratory tract
macro pipeline
marine radio aids
Marquand, John P(hillips)
mass-to-power ratio
measuring set
metal ion inactivator
microtiter plate
minimansion
minimum energy gradient
nonbarren
odontoperiosteum
okoyong
Oncorhynchus masou
orient-
ortho-homosalicylic acid
pancorius magnus
permanent cell
praefects
presidential palace
presser foot height
prosoms
queenings
Radio control.
radiovision
random amplitude distribution
reperfusion injury
Rimski-Korsakov
robber baron
rysagon
s razor
sentiment indicator
series compounding excitation
sfnb
silver wire suture
single row machine
smile a smile
sociology of aging
speciality fund
store double precision
suppressed-carrier transmission
sure thing!
surface irradiation
tactical practial planning
testing position
tetraphylla
tieio (tyeso)
towing condition
towing target
tube resistance
ultracentrifughe
uncover station
Versestausee
voice response unit
Waterval-Onder