甲基乙醋酸

Acid Rain 酸雨 Damage from acid rain is widespread - not just in eastern North America, but throughout Europe, Japan, China, and Southeast Asia. Is the rain that's falling on your umbrella acidic? A listener's question -- on today's Earth and Sky. J

发表于:2018-12-07 / 阅读(296) / 评论(0) 分类 (科普英语)Earth and Sky

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(113) / 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(164) / 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(172) / 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(144) / 评论(0) 分类 初学者听力文摘精选

The Zhenjiang vinegar is made from sticky rice. 镇江香醋的原料是糯米 Production starts with soaking the sticky rice. 浸泡过的糯米经过高温蒸煮 The rice is first steamed in high temperatures until the starch component gets sticky.

发表于:2018-12-28 / 阅读(164) / 评论(0) 分类 舌尖上的中国第一季

How does acid deposition affect human health? We eat food, drink water, and breathe air that has come in contact with acid deposition. Canadian and U.S. studies indicate that there is a link between t

发表于:2019-01-02 / 阅读(339) / 评论(0) 分类 知性英语

Section 28 Acid Rain 50 years ago, no one talked about acid rain. Then we didn't really know the harm it was causing to the world. Today almost every adult and school child is aware of acid rain and i

发表于:2019-01-02 / 阅读(211) / 评论(0) 分类 英语导读1000句

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(185) / 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(173) / 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(201) / 评论(0) 分类 农业与发展

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(170) / 评论(0) 分类 VOA2003(下)-环境与健康

Can Folic Acid Prevent Childhood Autism? From VOA Learning English, this is the Health Report in Special English. A new study found that women who took folic acid supplements in early pregnancy were less likely to have a child with autism. Folic acid

发表于:2019-01-12 / 阅读(213) / 评论(0) 分类 2013年VOA慢速英语(五)月

AS IT IS 2016-02-13 Work Soothes Pain of Acid Attacks In India A caf in India is hiring women who once stayed in hiding after being attacked with acid. One woman, Dolly Kumari, says she stayed inside for two years after a man threw acid on her. He wa

发表于:2019-01-12 / 阅读(201) / 评论(0) 分类 2016年VOA慢速英语(二)月

Pakistani Acid-Attack Victim Enjoys New Life in Texas After taking the oath of citizenship, Julie Aftab celebrated. I have waited eight-and-a-half years to hear those words, and those words mean so much to me, she said. Ten years ago, when she was 16

发表于:2019-01-13 / 阅读(162) / 评论(0) 分类 VOA标准英语2012年(八月)

Magnetic Ring Used to Stop Acid Reflux Heartburn is usually linked to gastric acid that reaches the esophagus when a weak muscle does not close as it should after swallowing. When stomach juices back up into the esophagus, the acid can cause a burnin

发表于:2019-01-14 / 阅读(207) / 评论(0) 分类 VOA标准英语2013年(四月)

By Birungi Machrine Kampala 26 November 2007 Attacks using acid are becoming more frequent in Uganda. Up to 2003, there were only 145 recorded attacks, but over the last three years, there have already been 87. Survivors often suffer from severe emot

发表于:2019-01-16 / 阅读(253) / 评论(0) 分类 VOA常速英语2007年(十一月)

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(190) / 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(190) / 评论(0) 分类 VOA常速英语2013年(十月)

On September 18th, all New Zealand bread was going to have folic acid added to it. However, now the government has decided to wait three years. New Zealand and Australia have an agreement about food standards. Australia is going to add folic acid to

发表于:2019-02-25 / 阅读(233) / 评论(0) 分类 新西兰英语
学英语单词
aceraceous
anticarious
automated container handling
axes of an aircraft
basirhinal
big chill
biochemical oxygen demand(bod)
black and white iceberg
bolection moulding
bona fide holder
boots up
burn sb up
cascade resonance
cheirifolia
coaxial configuration
comminate
corei
counterdiscourse
crivello
customer buying patterns
cyberizes
Dalby's carminative
dangling bond band
debugs
departmental audit team
distance ga(u)ge
dual tabularform
dye over
efficient estimation
eleni
examination of water supply hygiene
figeaters
first-order climatological station
foranger
forthcoming naturally
genus octopuses
ground-shaker
Gurney-Lurie chart
headline-writer
heels over head
hepatic venous sinus
hissie fit
horizontal fender
hydroxy-palmiton
idoses
inlet region
kepstone
labyrinthus pubicus impar
lacebug
lanthanium
lionne-sew
look to be
maggi sauce
make an admission of
malin
Malus prunifolia Borkh.
Mordoy
multiple-output control
natural regeneration by shoots and suckers
navigation dome
navigational electronics
necrotizing ulcerative gingivostomatitis
ochroite (cerite)
octafunctional initiator
of name
on one's bones
oriented language
photochirogeneses
photodissociates
polysonic
pragues
primary-progressive
pump suction valve
quickly drying colour
railway torpedo
Rancho Santa Fe
refitting
Salvia bifidocalyx
service level
shoe piece
speed selector
spherical derivative
SQL
staff assessment
street offence
system of orthograph
the honourable member
Thomas, Charles Louis Ambroise
Trema tomentosa
two-piece printed circuit connector
two-sided vector space
unique to
vacuum ultraviolet photon
vessel traffic reporting system
vibrational instability
volcanic tear
wading crossing
weather days
welch plug
wundi
you can't make a silk purse of a sow's ear
zero access addition