[化] 草酰乙酸二甲酯

AS IT IS 2016-10-01 Report: Smoking May Permanently Damage Genetic Material 报告称吸烟或永久性损伤你的遗传物质 Here is another reason to not light up a cigarette. Smoking can permanently damage your genetic material, according to a n

发表于:2018-12-16 / 阅读(109) / 评论(0) 分类 2016年VOA慢速英语(十)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(161) / 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(160) / 评论(0) 分类 Scientific American(三)月

You may have heard that humans and chimpanzees have something like 96 percent of our DNA in common. So why, then, are diseases like cancer so common in humans but so rare in chimps? If our DNA is nearly identical, shouldnt we be at risk for many of t

发表于:2018-12-28 / 阅读(132) / 评论(0) 分类 初学者听力文摘精选

Stomach Cells Happier with Dark Roast Coffee 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 research presented

发表于:2019-01-02 / 阅读(181) / 评论(0) 分类 60秒科学

M Madasiatic acid 崩大碗酸 Magnoflorine 木兰花碱 Magnolia cortex P.E 厚朴提取物 Magnolol 厚朴酚 Maitake mushroom P.E 灰树花提取物(舞茸提取物) Malonyl Oleanolic acid Hemi

发表于:2019-01-03 / 阅读(168) / 评论(0) 分类 医务英语

β-Amyrin β-香树脂醇 α-Amyrin acetate α-香树脂醇乙酸乙酯 β-Amyrin acetate β-香树脂醇乙酸乙酯 β-Amyrin palmitate 棕榈酰β-香树酯 Anabasine 毒藜碱 Anagyrine 臭豆碱,安

发表于:2019-01-03 / 阅读(162) / 评论(0) 分类 医务英语

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(196) / 评论(0) 分类 农业与发展

An ass and an ox,fastened to the same yoke,were draging a waggon.While the ox was pulling with all his might he he broke a horn.The ass swore that he had got no help whatever from his weak companion.Exerting himself in the labour,the ox b

发表于:2019-01-09 / 阅读(230) / 评论(0) 分类 趣味英语

By Caty Weaver Broadcast: September 12, 2003 This is Bob Doughty with the VOA Special English Environment Report. Scientists in the United States have reported some good news about the 1)ozone in the

发表于:2019-01-11 / 阅读(164) / 评论(0) 分类 VOA2003(下)-环境与健康

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(187) / 评论(0) 分类 经济学人科技系列

Body Clock Provides Clues to Aging 生物钟提供衰老的线索 If youre searching for the fountain of youth, you might find it in your DNA. Thats according to a new study that sheds light on the biological clock ticking in our genomes, why our bod

发表于:2019-01-31 / 阅读(180) / 评论(0) 分类 VOA常速英语2013年(十月)

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发表于:2019-03-02 / 阅读(221) / 评论(0) 分类 加州英语分级GK

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学英语单词
61
adjustment controls
advance preparation
Advisory letter
alkali-fast dye
amadans
Anaho Island National Wildlife Refuge
Ancylistineae
anti-collision pier
area packing density
at full capacity
Barbara Castle
bed chamber
blow-lamp
capsella bursapastoris moench. forma
char-oil energy development process
chromosomal nondisjunction
cis-Methylisoeugenol
clayness
closure tolerance
Cock and Hen
collyriums
command augmentation system
community languages
comparandum
conduit bridge
construct theory
copper acetoarsenite
counter-narrative
cyclocephalu
dapperlings
datil mts.
delousers
destroyable
discommoding
divers staggers
double-sledge
emergency preparedness
enterically
European hedgehog
foliate papillae
Fort Saint John
fractional t1
Genkdaphin
grenadin(e)
heisler chart
hemitropy (hemitrope)
hemoglobinolysis
hold it down
honored
hot-end coating by spraying
idle equipment
inter-business
isotachophoresis
joint owner
kept the peace
kickoff mechanism
kralev
lampoonry
Landbrot
langrishe
leptogium trichophorum
loop disconnect signalling
Lysimachia chenopodioides
macrohaemodynamics
mainlinings
maintenance switching
mooring right
mulleriosis
Neri's sign
network of irrigation channels
nitrofication process
odor-resistant
operator part
Ossendrecht
paso limay
Phase Alternation Line
photonuclear reactions
pick them up
plate belt feeder
prurit
psyches
pupinella swinhoei
quality transplants
radio-protection
random-walks
ratio of running torque
repsol
rewrite command
Rockies, the
Sacred College of Cardinals
salt tolerance of crops
seaver
Sheetrocking
start-to-finish
stokle
stripwise
tool making lathe
unmitring
vagomimetic
veneered flakeboard
vretical gyroscope