四溴化二硼

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

New Report Shares Secrets of Rare Blue Diamonds History The Hope Diamond is one of the worlds most famous jewels. It was in the possession of a series of people: kings, bankers, rich women and thieves, before its arrival 60 years ago at the Smithsoni

发表于:2019-01-03 / 阅读(170) / 评论(0) 分类 2018年VOA慢速英语(八)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(138) / 评论(0) 分类 医务英语

AGRICULTURE REPORT - Restrictions on Methyl Bromide By Mario Ritter Broadcast: Tuesday, March 16, 2004 This is Steve Ember with the VOA Special English Agriculture Report. Graphic Image Some chemicals

发表于:2019-01-06 / 阅读(175) / 评论(0) 分类 农业与发展

By Caty Weaver Broadcast: September 12, 2003 This is Bob Doughty with the VOA Special English Environment Report. Scientists in the United States have reported some good news about the 1)ozone in the

发表于:2019-01-11 / 阅读(143) / 评论(0) 分类 VOA2003(下)-环境与健康

AGRICULTURE REPORT - Cover Crops By Mario Ritter Broadcast: Tuesday, March 23, 2004 This is Steve Ember with the VOA Special English Agriculture Report. The idea to grow a crop that improves the land

发表于:2019-01-30 / 阅读(149) / 评论(0) 分类 农业与发展

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(164) / 评论(0) 分类 万物简史
学英语单词
4-azaindole
802.11a
access specifier
across variables
adverse weather condition
Agrostis gigantea
air plotting board
aluminium borohydride
Andromeda L.
asynchronous transfer
automatic black level
brant-geese
buoy sling
burdea
bust something up
Calogreen
capercailzies
Carbenin
carrier's b/l
cash in till
coal fired boiler
cockbulges
cohortation
computer aided drawing
counter-coups
creosote bush
digital reflex
duration of response
edge-punched punch
englert
fiap
fifes
flameproof dry-type transformer
floral realm
foot brake pedal pressure gauge
heavy whipping cream
heterotransplants
hitching
huqqas
imagesetting
impatiens fissicornis maxim.
influenzal pneumonia
interserting
kidude
knock closed-loop control
L-level
least developed developing counrty
logical-consequence
low tone air horn
Luanda, Prov.de
manganese sulphate
matters of aggravation
mercuric polysulfide
mesembryanthemum crystallinums
midabdomen
mizen-top man
Mmusi
montrel
moroxylic acid
Nochtia nochti
noncacheable
norboletone
ordinarity
os hamatum
out-of-sample forecasting
para.s
plain Dunstable
pocket memory
port rate
possessive suffixes
ppbv
Preliminary Scholastic Aptitude Test
principle of solidarity
Propontis
prostiboots
puberulic acid
relative economic status
relative pollution index
repatriate
self-recorder
short-grass
Sommacampagna
speed setpoint
spherocephalus
St-Léon
Stjφrdalselva
Sulf-10
suppression pool water
swedesboro
swimming-pool
symmetry properties of wave function
Testex
triclinic hemi-prism
truck ladle
twazzocks
UHF-aerial
ultrasonic flow detector
untwilled
veterlok
waynflete
West Caroline Basin
work practices