甲维生素B12

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(65) / 评论(0) 分类 Scientific American(六)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(66) / 评论(0) 分类 Scientific American(三)月

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发表于:2018-12-30 / 阅读(30) / 评论(0) 分类 李俊记忆超人-英语单词妙记手册

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(90) / 评论(0) 分类 农业与发展

Study: Vitamin B12 Deficits in Older Adults Linked to Brain Decline

发表于:2019-01-14 / 阅读(30) / 评论(0) 分类 VOA标准英语2011年(十月)

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(59) / 评论(0) 分类 经济学人科技系列
学英语单词
Achilles's tendon
acid sodium acetate
actual irrigation area
affix one's seal to
amendableness
andorite
anticreaming agent
battlefield management
be in collar
besselian inter polation coefficients
black fish
bobbin furniture
Burmese rosewood
C-type virus particle
casts of characters
cause-effect graphing
centrifugal cast iron pipe
chart speed shifter
cold conductor bridge
conical pin
cord carcass
course per standard compass
dawoud
departees
deposits
dinitrile
direct-reverse switch
dl/1
Dropcam
duree
ecphyaditis
electrode reactance
electrostatic induced current
embryonic layer
firewatches
free water damage
fruiting up
geometers
Glyptopetalum aquifolium
goat-likest
grip sheave
haemocytoblasts
haslinger
hypersingular
IHSS
instant food
irrespective of percentage
jumbo ramp
jumentarious
Kepler's first law
Lavassaare
limitings
long room
Lower Loteni
Makassar Strait
metamer
morasha
naso-hypophysial duct
non-creative
pneumolith
porrigo scutulata
potato lifter
primness
production order system
pteropleuston
Pyal'ma
pyrimidine-5'-nucleotidase(P5'N)
RAM chip
re-defines
rock-breaking
route map of soil
Rubin test
rubus pinfaensis levl.et vant.
Ruynes-en-Margeride
sandalwood fan
savetsila
secondary test
silicone heat sink compound
simulation heuristic
single-destination shortest-path problem
southland
spatial point position
spun iron pipe
sulamserod
sulphuric ether
Sungaigerong
supermarket
synchronous earth observatory satellite
syuzhets
Tesla, Nikola
time-displacement curve
travelspheres
Trichophoreae
trumpet-major
two-stage countercurrent elutriation
uranium(iv) iodide
urhidrosis
Valdevimbre
variable-focus pyrometer
vein rib
water quantity
yblessed