羟烷基甲基纤维素

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(90) / 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(137) / 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(137) / 评论(0) 分类 Scientific American(三)月

Don: Time to go again to the A Moment of Science mailbag. Yal: A listener writes: Dear A Moment of Science, Scientists know that one day we'll run out of oil and other natural sources of energy. Beyond solar power and wind power and ethanol, what are

发表于:2018-12-27 / 阅读(118) / 评论(0) 分类 英语时差8,16

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(95) / 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(162) / 评论(0) 分类 60秒科学

Humulone 律草酮 Huperzine Serrate P.E 千层塔提取物 Hydroginkgolic acid 氢化白果酸 Hydroginkgolinic acid 氢化白果亚酸 p-Hydroxyacetophenone 对羟基苯乙酮 p-Hydroxybenzylalcohol

发表于:2019-01-03 / 阅读(123) / 评论(0) 分类 医务英语

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(141) / 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(177) / 评论(0) 分类 农业与发展

This is Scientific American's 60-Second Science. I'm Cynthia Graber. This'll just take a minute. It sounds like something out of a bad science fiction novel. During World War II, a fungus called Tricoderma reesei ate its way through US military unifo

发表于:2019-01-08 / 阅读(147) / 评论(0) 分类 Scientific American(五)月

Scientists in Brazil are turning fruit fibers into car parts. At a recent meeting of the American Chemical Society, the researchers described their work in making the next generation of automotive parts made from natural fibers from bananas, pineappl

发表于:2019-01-09 / 阅读(131) / 评论(0) 分类 VOA标准英语2011年(四月)

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(143) / 评论(0) 分类 VOA2003(下)-环境与健康

Turning Cigarette Butts to Batteries 烟头转变成电池 If you see a person carelessly throw a cigarette to the ground, what are you likely to think? That depends. If you hate people throwing things on the ground, you might think, That person shou

发表于:2019-01-12 / 阅读(130) / 评论(0) 分类 2014年VOA慢速英语(九)月

Researchers Say Malaria Drug Could Also Treat Cancer Scientists know that human cancer cells grow by getting energy from adjacent tumors, where cells have begun to self-destruct. The spread of cancer is accelerated by the death of these cells. This p

发表于:2019-01-13 / 阅读(156) / 评论(0) 分类 VOA标准英语2012年(三月)

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

In January 2015, a fire in one of Russia's largest university libraries damaged more than 1 million historical documents, an incident which some media described as a cultural Chernobyl. 2015年1月,俄罗斯最大的大学图书馆之一发生了火灾

发表于:2019-02-02 / 阅读(116) / 评论(0) 分类 英语新闻

台湾籍旅美老师今天交给我们的句子是: It's not rocket science: Focus on lean protein, healthy fats and non-processed, unrefined carbohydrates such as vegetables, beans, whole grains and fruit. 这不难懂:多摄取低脂肉类、健

发表于:2019-02-22 / 阅读(134) / 评论(0) 分类 留美老师带你每日说英文
学英语单词
Achoerodus gouldii
acid-digestion-fast
air inflation
alexinic
annual extreme daily mean temperature
approval of land expropriation
archaicness
astatic system
at peace
base-load operation
beat the bush
bilge log
boothook
bootsey
buckling of a plate
bulkhead isolation valve
c(a)esium mineral
C. T. A.
candidate species
carpophage
carry owls to Athens
celery roots
Charcot's gait
cockle-burr
Cologne Reinsurance Company
creuett
cup chuck
cypraea quadrimaculata
declamping
decoder timing
electro-osmotic transmission coefficient
endocrin
equipment incomplete
exchange rate fluctuations
family ameiuridaes
Fidā'
flaccid-
floating debenture
forced outage incident rate
Gallo-Italian
glafenine
global differential geometry
Greiner chronocomparator
gyroelectric
hiring halls
horizontal wind vector
hydrodewaxing
hypnea pannosa
idolize
intrahepatic cholangiolar hepatitis
jailings
Leatherman Peak
leniently
linear power controller
liquid squeezed ingots
lome convention
lower orifice
machine wrench
multi-element cooler
multi-fuel internal combustion engine
multi-purpose launching vehicle
natural resources law
NDE (nondestrutive examination)
negative picutre
nibroxane
non-funds
non-thermal distribution
obas
Omonos
paint a black picture of
pericemental fibrosis
Polemonium chinense
protective shell
Protestant work ethic
psychopathic personalities
pyoluteorin
receiveth
releasing rod door lock
resews
restricted market
reusable medium
running-costs
rusere
sandoz
school design
Seven Certificates
six-by-four
smooth fluidization
Stamboul
Steptoe and Son
strens
style type
tag-along right
taylor dislocation
upland antshrike
value of ecosystem service
Verkhovyna
viveurs
wet fish
xylaria multiplex
Zik'wala Terara
zone of acceptability