[化] 美雄酮; 1-脱氢-17α-甲基睾丸甾酮

By Gary Garriott Broadcast: July 29, 2003 This is Bill White with the VOA Special English Agriculture Report. Soil conservation efforts protect soil from wind and water that can blow or wash it away.

发表于:2018-12-07 / 阅读(95) / 评论(0) 分类 VOA2003(下)-农业与经济

British BAFTA winner Thandie Newton The red carpet was rolled out in Londons Leicester Square on Sunday as stars from all over the world gathered for this years British Academy Film Awards. The British Academy of Film and Television Arts , or BAFTA

发表于:2019-01-02 / 阅读(56) / 评论(0) 分类 Take Away English

By Carol Pearson Washington, DC 15 September 2006 watch Meth and Dental Care Methamphetamine Ice Methamphetamine is an addictive drug that can damage brain cells. It is suspected to cause a movement disorder similar to Parkinson's disease. Meth use

发表于:2019-01-07 / 阅读(140) / 评论(0) 分类 2006年VOA标准英语(九月)

This is Scientific American's 60-Second Science. I'm Cynthia Graber. This will just take a minute. Landfills produce methanewhich can be valuable as an energy source. But scientists haven't known why landfills make so much methane. The solid waste in

发表于:2019-01-08 / 阅读(141) / 评论(0) 分类 Scientific American(四)月

AS IT IS 2015-09-20 Documentary Shows US, Mexico Fighting Drug Cartels 纪录片:墨西哥打击贩毒集团 A new movie follows two communities -- one in the United States and the other in Mexico -- as they try to stop drug cartels from harming thei

发表于:2019-01-12 / 阅读(93) / 评论(0) 分类 2015年VOA慢速英语(九)月

UN Wants Australia to Take Lead Against Asian Drug Traffic 联合国促澳大利亚带头打击亚洲毒品走私 From VOA Learning English, this is the Health Lifestyle report. United Nations officials say they have recently seen an increase in the

发表于:2019-01-12 / 阅读(83) / 评论(0) 分类 2016年VOA慢速英语(八)月

Synthetic Drug Problematic for US Authorities Augusta County, Virginia, is a rural county in the Blue Ridge Mountains, two and a half hours southwest of Washington. It has a big problem. Sheriff Randy Fisher says Augusta County was once known as the

发表于:2019-01-13 / 阅读(156) / 评论(0) 分类 VOA标准英语2012年(六月)

UN:MethUseSurginginSoutheastAsia A report by the United Nations Office on Drugs and Crime (UNODC) warns that production and use of synthetic drugs such as amphetamine-type stimulants is widespread and growing globally. The report identifies Southeast

发表于:2019-01-13 / 阅读(77) / 评论(0) 分类 VOA标准英语2011年(九月)

AILSA CHANG, HOST: A trade dispute has different parts of the solar industry in the U.S. at odds with one another. Two U.S. manufacturers say they cannot compete with cheap solar panels from China. So they're asking regulators to impose a tariff. Tha

发表于:2019-01-16 / 阅读(86) / 评论(0) 分类 2017年NPR美国国家公共电台8月

DAVID GREENE, HOST: We have been reporting on the rise of some really nasty diseases caused by tick bites - everything from Lyme disease to Rocky Mountain spotted fever. Well, now a new study is shedding light on an old technique to repel ticks that

发表于:2019-01-17 / 阅读(93) / 评论(0) 分类 2018年NPR美国国家公共电台7月

Another Drug Crisis: Methamphetamine Use By Pregnant Women AILSA CHANG, HOST: A new study published today finds that a growing number of women in recent years have been using amphetamines like crystal meth during their pregnancy. The rates of use hav

发表于:2019-01-23 / 阅读(69) / 评论(0) 分类 2018年NPR美国国家公共电台12月

By Carol Pearson Washington 11 October 2007 A children's hospital in Texas reports a rare condition that can threaten the lives of identical twins. The disorder has been noticed in a number of countries with advanced medical practices. A hospital spo

发表于:2019-01-31 / 阅读(69) / 评论(0) 分类 2007年VOA常速英语(十月)

Raw anti-drug campaign awakens state Ted Landphair | Missoula, Montana 04 February 2010 Photo: Montana Meth Project Adults across Montana were frightened by what they were seeing. Some hardly recognized their meth-addled teenagers. Related Links Mont

发表于:2019-02-02 / 阅读(85) / 评论(0) 分类 VOA标准英语2010年(二月)

Among the beautiful pictures That hang on Memory's wall, 在那些美轮美奂的画中间挂在记忆墙上的, Is one of a dim old forest, That seemeth best of all; 是古老的森林一抹幽暗,似乎在其中画工最善; Not for its gnarl

发表于:2019-02-11 / 阅读(63) / 评论(0) 分类 美国语文第六册

Voice 1 Hello. Im Ruby Jones. Voice 2 And Im Marina Santee. Welcome to Spotlight. This programme uses a special English method of broadcasting. It is easier for people to understand, no matter where in the world they live. A small candle burns. It re

发表于:2019-02-21 / 阅读(89) / 评论(0) 分类 环球英语 Spotlight

A Fresh Breath of Methane 很早很早以前地球有很微量的氧气,而且地表状况十分恶劣。大气主要是N2和Co2,后来通过复杂的变化,地球开始出现了厌氧型生物。在生命的作用下,地球的氧气开始不断

发表于:2019-03-09 / 阅读(115) / 评论(0) 分类 英语听力文摘 English Digest
学英语单词
agriocnemis pygmaea
aikins
analog and digital frequency dividers
Angulus occipitalis
anhungered
antarctics
antidependence
B.C.E.
BCLL
Bebhionn
Birilyussy
black frost
blind plate
booze it up
center of disturbance
co-adventure
Cone of silence.
confocal ring resonator
Countryside Agency
cut off signal
delbrucks
duration response
emphasis on wheat
Eurolinguistic
examless
ferlinghetti
field-piece
fire load density
flaking station
foot switch
fouling section
gas cooled reaction
headspaces
imaginary exponent
in vivo exposure
inert-gas diode
input/output board
ivory finish
kirkmen
konecny
launch a ship
Lee Trevino
literarist
Machilus parabreviflora
makatite
marker chromosome
multidestination teleprinter system
naked cells
NFAIS
nonobsolescent
Oakland City
onoclea orientalis hook.
orthometric correction
osmina
Ostreobiaceae
out of wood
overfueling
oxypropionic acid
pack mustard
palmesthetic sensatons
paraheredity
parent's investment in children
penetrative sex
pensiveness
plainish
point supremum
positionalrepresentation
poststigmatal cell
potato storage
Primula giraldiana
proton nmr
pseudo-classical
pyrrhicist
Q4
radebaugh
rising up
RNVR
saffis
school of medicine
singultuss
sissification
small outline dimm
soil capillary supporting water
sorb apple
spring-leaf retainer
stacking device
structural explanation
subgerminal plates
suprasubjective
systematic
time division system
to blather
unrecomptless
urban centers
vardhamana mahavira
varioloid
vertical amalgamation
western kingbird
wine tanker
zinc valerate
zonal completion