5-羟甲基尿嘧啶

This is Scientific American's 60-Second Science. I'm Steve Mirsky. Got a minute? On June 4th we told you about iron snowflakes on Mercury. Today we have some radical news about the atmosphere of Venus. Literally, a radical is a molecule that reacts e

发表于:2018-12-24 / 阅读(48) / 评论(0) 分类 Scientific American(六)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(63) / 评论(0) 分类 Scientific American(六)月

Erythromycin,红霉素 Azithromycin,阿奇霉素 Clarithromycin,克拉霉素 Fluoroquinolones and their derivatives (e.g. levofloxacin),多西环素(如:脱氧土霉素) Tetracyclines (e.g

发表于:2019-01-03 / 阅读(40) / 评论(0) 分类 医务英语

分集介绍:导数,商数,正弦和余弦 Derivatives.of.products.quotients.sine.cosine

发表于:2019-01-05 / 阅读(285) / 评论(0) 分类 麻省理工学院公开课:单变量微积分

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(84) / 评论(0) 分类 农业与发展

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
学英语单词
achirality
al-shams
ALOHA network ALOHA
alphanumeric data
aluminium hydroxides
arthroplasty of interphalangeal joint
average velocity of groundwater
basestealers
Betawis
bokey
bunk truss
caravelle
Central Greece
Chalcese
clear cell carcinoma of liver
clerestory head
coke coated
colour-coded cable
costs on the higher scale
crepidatum
debts-to-equity
deferred stock
dimethyldichlorosilanes
direct conductance measurement
disposition of net profit
double boom sprinkling machine
drug administration
Drysdale R.
Ebert-Fastie mounting
eight-hundred
electric current transducer
electric explorer
essential periodic matrix
ethyl mandelate
fallan
family batidaceaes
fellow-creatures
flat bones
Flaxman, John
Free Asset Ratio
fungi impertecti
gangliocytes
generalized hamming code
gillock
give me a kiss
greenpark
hauing
henchboy
Hydrangea glabripes
hydroxythiamine
hype sb up
in-app purchase
increase production without increasing the work force
intercall signal
iron safe clause
lea plow
lemniscomys striatus
LEPTOLEPIDIDAE
maggot-pierced cocoon
Magyibin
mass-action equilibria
melanostachys
memory mapping enable
necking
neurilemmosarcoma
neutral spirit
non-urban
nu particles (nucleosomes)
over-hasty
pathogenetically
pigeon-berry
pilot examination
pilot-wire protection
planckiam locus
polar binding
Potenza, Prov.di
rakily
referrin'
Rhaponticoides
rohrabacher
scum blow-off cock
shared track
sillocks
sodium magnesium chloride
stenostomatous
stswsos-s
sub-saharan
sub-threshold
subcontraries
sweet acacias
swindler
system transfer rate
terminals for power supplies
treble staff
trescott
un auspicious
unsaltatory
uritary
vischers
white rope
yuji
zaabal