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氨基吡啶

This is Scientific American's 60-Second Science. I'm Karen Hopkin. This will just take a minute. As Valentines day approaches, remember, its the thought that counts. Just ask a decorated cricket. Because according to a study published in the January

发表于:2018-12-24 / 阅读(59) / 评论(0) 分类 Scientific American(一)月

Egyptian archaeologists have discovered the bottom part of an unknown pyramid in the Sakkara area about 18 miles south of Cairo. NationalGeographic explorer-in-residence Dr. Zahi Hawass, the Secretary General of the Egyptian Supreme Council for Anti

发表于:2018-12-30 / 阅读(63) / 评论(0) 分类 国家地理2008年

Egyptian archaeologists have discovered the bottom part of an unknown pyramid in the Sakkara area about 18 miles south of Cairo. National Geographic explorer-in-residence Dr. Zahi Hawass, the Secretary General of the Egyptian Supreme Council for Anti

发表于:2019-01-22 / 阅读(68) / 评论(0) 分类 自然百科2008年

Science and technology 科学技术 Creutzfeldt-Jakob disease 克雅氏病 Breaking down the barrier 攻破屏障 A glimmer of hope for a drug that treats disease caused by prions 药物治疗朊病毒感染疾病的一线希望 THE epidemic of mad-c

发表于:2019-01-26 / 阅读(74) / 评论(0) 分类 经济学人科技系列

Science and Technology Creutzfeldt-Jakob disease Breaking down the barrier 科技 克雅氏病 攻破屏障 A glimmer of hope for a drug that treats disease caused by prions 药物治疗朊病毒感染疾病的一线希望 THE epidemic of mad-cow dis

发表于:2019-01-26 / 阅读(61) / 评论(0) 分类 经济学人科技系列

By Brian Padden Irbil, Iraq 17 August 2007 The death toll from a series of suicide attacks on Iraq's Yazidi sect on Tuesday continues to rise. Officials now estimate at least 400 people were killed and hundreds more wounded when four truck bombs expl

发表于:2019-02-03 / 阅读(101) / 评论(0) 分类 2007年VOA标准英语(八月)
学英语单词
3-hydroxy-2-methyl-pentanal
abraxas illuminata
Adaptive antenna
advertising restrictions
advoke
alimentary diabetes
alliterative verse
alphabetizer
angiocentric immunoproliferative lesion
antimony chloride
arenite
astrictively
average assistance
beneficial spread
benzene-pentacarboxylic acid
bifront
branigin
Bunamdo
cadmium wire
Calamus siphonospathus
Calopogonium
chromatin dimilution
close up to
commutating switch
crosslicence
deadline effect
depreciation of capital
diabetic food
divine offices
Eisspath
elevation tint
epilog code
espensive
finish with somebody
fore-rake
housegirls
hydrated chlorite
imperfect heart wood
indef
industrial peace
integer factorization
isomotiol
Kinguélé, Chutes de
l(a)ev(o)glucose
largest-capacity
lawways
left iliac fossa
lingual artery
locally connected
log roller
magnetic filtration
margthe
multihead automatic arc welding machine
Namhkam
Natronococcus
NBOX
numeric class test
one parameter method
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overroot
papular lichenoid psoriasis
Paraduttonite
play the ape
policy year
polymerized
porous catalyst
prentky
principle of collective leadership
pruce
Pyrinethol
Quinbar
railmen
refractory faced
register observation device
reverse lever catch
Saint-Maurice
security on the move
separation of territory
servo-mechanism
shadyside
single anode mercury arc rectifier
singular solution
Sinocrassula densirosulata
slip pump
source restoration
squares
stand-by transformer
surveying station
swaggies
synchronizing generator
take the road of
throttle station
tropicalise
tuberculinisation
usage model
valsa mali miyabe et yamada
Virje
Virtualization Technology
viscerosomatic
weatherizing
wet food
zero-incidence