丙烯酸脂类

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(60) / 评论(0) 分类 Scientific American(六)月

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(83) / 评论(0) 分类 农业与发展

By Noel King Khartoum 15 February 2007 Amid growing concern over continued violence in Sudan's Darfur region, top United Nations and African Union envoys to the region said Thursday they remain optimistic that a political solution to the crisis can b

发表于:2019-01-12 / 阅读(84) / 评论(0) 分类 2007年VOA标准英语(二月)

By Michael Bowman Washington 25 March 2007 A former U.S. ambassador to the United Nations says only regime change will cause Iran to halt its nuclear program. VOA's Michael Bowman reports from Washington, Ambassador John Bolton spoke one day after th

发表于:2019-01-13 / 阅读(99) / 评论(0) 分类 2007年VOA标准英语(三月)

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(58) / 评论(0) 分类 经济学人科技系列

By Michael Bowman White House 04 May 2006 President Bush says the United States remains committed to promoting justice and prosperity in Latin America, and is backing its words with actions and aid. M

发表于:2019-02-05 / 阅读(112) / 评论(0) 分类 2006年VOA标准英语(五月)
学英语单词
-something
advisory group for aerospace research and development (agard)
Alantika Mountains
alarm reaction
alt schwerin
amplifying head
anthropoidal
autochemogram
automatic handshake
baseline system concept
battened grating
big leaguer
blastogranite texture
booking point of telephone and telex calls
Brinkum
Casselian
cedilles
cephalopod mollusk
COLAtard
compton stripping
conjugate redundant force
cordillas
cost of acquistion
dancer rools
deaminase
dentinogenesis imperfecta
department of acupuncture and moxibustion
domiciliary
DRSN
dryopteris fragranss
Easter-egging
eigenspinor
ellore
equitable partnerships
fast reactors
flatness of wave
flow unit
froggers
fukinanolide
Gerber's law
globally optimal solution
gloves surgical
haematopinus tuberculatus
hakee
hand saws
heating of turbine
inversion saturation
isabellina
isotonic diluent
kapustin
knowledgable
LAN Local Area Network
Licaran
Luhya
malignant freckle
marcheline
molding sand composition
muscath
Nagler effect
oxidoinflammatory
parachute oscillation
particle track computer
phantasy worlds
pigeon eggs
plant variety
platy-monocrystal
platycnemic index
popcorn fart
preferential absorption
preperitoneal hernia
pretty well impossible
prothesis
rammist
read back check
reliability index
research labs
resist soiling
saoumas
schoenites
science of the artificial
side member extension
stargroup
surface ageing
terminaline
the great hungers
tied retaining wall
time base (or sweep circuit)
Tournavista
trephined
turbine type mixer
umbrella pruning
unhalal
unsending
user routine bound unit
vaginogram
vibration isolation
Vittariinae
whitecliffes
Winchester College
Windkessel vessel
wonder-stricken
wrapper leaf