[化] 溴化四甲铵

In business, Optus has called for Telstra's proposals on its participation in the national broadband network to be blocked. Optus' chief executive Paul O'Sullivan says Telstra's current plan for the separation of its retail and wholesale arms wholesa

发表于:2018-12-11 / 阅读(94) / 评论(0) 分类 澳洲ABC新闻快递2011年

AS IT IS 2016-10-01 Report: Smoking May Permanently Damage Genetic Material 报告称吸烟或永久性损伤你的遗传物质 Here is another reason to not light up a cigarette. Smoking can permanently damage your genetic material, according to a n

发表于:2018-12-16 / 阅读(40) / 评论(0) 分类 2016年VOA慢速英语(十)月

This is Scientific Americans 60-Second Science. Im Cynthia Graber. This will just take a minute. Saliva contains many useful components: lubricants, enzymes for breaking down food and now compounds that can reveal a persons age. Thats according to a

发表于:2018-12-24 / 阅读(88) / 评论(0) 分类 Scientific American(六)月

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

Ever get a sour stomach after your morning coffee? Well, you might end up switching to a dark roastbecause that coffee concoction may leave you with a happier tummy. That's according to the research presented at the American Chemical Society meeting

发表于:2018-12-24 / 阅读(90) / 评论(0) 分类 Scientific American(三)月

You may have heard that humans and chimpanzees have something like 96 percent of our DNA in common. So why, then, are diseases like cancer so common in humans but so rare in chimps? If our DNA is nearly identical, shouldnt we be at risk for many of t

发表于:2018-12-28 / 阅读(42) / 评论(0) 分类 初学者听力文摘精选

Stomach Cells Happier with Dark Roast Coffee Ever get a sour stomach after your morning coffee? Well, you might end up switching to a dark roastbecause that coffee concoction may leave you with a happier tummy. That's according to research presented

发表于:2019-01-02 / 阅读(121) / 评论(0) 分类 60秒科学

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(84) / 评论(0) 分类 医务英语

M Madasiatic acid 崩大碗酸 Magnoflorine 木兰花碱 Magnolia cortex P.E 厚朴提取物 Magnolol 厚朴酚 Maitake mushroom P.E 灰树花提取物(舞茸提取物) Malonyl Oleanolic acid Hemi

发表于:2019-01-03 / 阅读(83) / 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(123) / 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(94) / 评论(0) 分类 VOA2003(下)-环境与健康

Science and Technology Epigenetics and stress Baby blues 科技 外因遗传与压力 新生儿蓝调曲 A mother's stress while she is pregnant can have a long-lasting effect on her children's genes 母亲孕期压力过大会对孩子的基因造成长

发表于:2019-01-26 / 阅读(119) / 评论(0) 分类 经济学人科技系列

AGRICULTURE REPORT – March 12, 2002: Carbon Dioxide and Crops By George Grow This is the VOA Special English AGRICULTURE REPORT. Increasing levels of carbon dioxide gas in Earth’s atmosphere have

发表于:2019-01-30 / 阅读(98) / 评论(0) 分类 农业与发展

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(95) / 评论(0) 分类 农业与发展

Body Clock Provides Clues to Aging 生物钟提供衰老的线索 If youre searching for the fountain of youth, you might find it in your DNA. Thats according to a new study that sheds light on the biological clock ticking in our genomes, why our bod

发表于:2019-01-31 / 阅读(71) / 评论(0) 分类 VOA常速英语2013年(十月)

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(106) / 评论(0) 分类 万物简史
学英语单词
absolute stop
accidental severity
Admiralty
alliate
ambitionist
angulus acromialis scapulae
antenna director
attah
ballet mistress
be all over bar the shouting
blade butt
blindman's bluff
brain disease
bromophenyl
capit-
chancelleries
checking by sampling
chief fireman
Clausena lunulata
closing flag
cold-sore
colo(u)ring problem
compilator
compostability
Cumberland Is.
cytotaxonomically
dam-buster
damper current
dancercise
degree of polymerization
dephosphorized pig iron
duobinary code
eaux de vie
ectoflexid
elmid
endochroic
episodic memories
ex buyer's godown
external malleolus
gaze on
geranium batangense pax et hoffm.
girder work
glacial amphitheater
Gosné
group lubrication
guardman
harbor wall
have trouble doing sth
Hightisone
homonoia riparia lour.
hydromagnocalcite (hydrodolomite)
ILAE
incremental displacement sensitivity
infommercials
iodine consumption
iron by hydrogen
irrorate, irrorated
law-men
leipein
neonic
nonexpert
osgoode
overpublicizes
p-words
phosphate deposit
previtalis
printed-circuit special lacquers
propellant explosive
psychophysical test
public service industry
pump assembly
pyramidology
renovict
residue of function at pole
revolving pan
Rhaphigaster mongolica
ripple through carry
rolling curve
Salians
sand explosion
Sokosho
spaghettoni
stress amplitude ratio
submarginate
suppliants
supra-mutagen
taiahas
thiodine
thread gage
through ball
throughtout
THYRIDIAE
tilt-block mountain
torgersen
TOTAL SCORE
tulgey
tumultus cordis
Twi-tard
unadulterated food
unfreakingbelievable
ventral mediastinal lymph gland
Zetlanders