2-羟-5-甲基-6-氨嘧啶

[全屏观看] 点击右键- 另存为 可保存这个Flash影片 Description: The game is won when you reach the level target or earn more money than your opponent. You must constantly upgrade your restaurant to maintain customers and revenue. If yo

发表于:2018-12-12 / 阅读(172) / 评论(0) 分类 Daily Free Games

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(106) / 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(158) / 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(156) / 评论(0) 分类 Scientific American(三)月

This is Scientific American's 60-Second Science. I'm Karen Hopkin. This will just take a minute. As Valentines day approaches, remember, its the thought that counts. Just ask a decorated cricket. Because according to a study published in the January

发表于:2018-12-24 / 阅读(151) / 评论(0) 分类 Scientific American(一)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(124) / 评论(0) 分类 初学者听力文摘精选

Egyptian archaeologists have discovered the bottom part of an unknown pyramid in the Sakkara area about 18 miles south of Cairo. NationalGeographic explorer-in-residence Dr. Zahi Hawass, the Secretary General of the Egyptian Supreme Council for Anti

发表于:2018-12-30 / 阅读(170) / 评论(0) 分类 国家地理2008年

发表于:2019-01-03 / 阅读(141) / 评论(0) 分类 医务英语

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(137) / 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(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(193) / 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(157) / 评论(0) 分类 VOA2003(下)-环境与健康

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(175) / 评论(0) 分类 VOA标准英语2012年(三月)

Egyptian archaeologists have discovered the bottom part of an unknown pyramid in the Sakkara area about 18 miles south of Cairo. National Geographic explorer-in-residence Dr. Zahi Hawass, the Secretary General of the Egyptian Supreme Council for Anti

发表于:2019-01-22 / 阅读(182) / 评论(0) 分类 自然百科2008年

Science and technology 科学技术 Creutzfeldt-Jakob disease 克雅氏病 Breaking down the barrier 攻破屏障 A glimmer of hope for a drug that treats disease caused by prions 药物治疗朊病毒感染疾病的一线希望 THE epidemic of mad-c

发表于:2019-01-26 / 阅读(194) / 评论(0) 分类 经济学人科技系列

Science and Technology Creutzfeldt-Jakob disease Breaking down the barrier 科技 克雅氏病 攻破屏障 A glimmer of hope for a drug that treats disease caused by prions 药物治疗朊病毒感染疾病的一线希望 THE epidemic of mad-cow dis

发表于:2019-01-26 / 阅读(177) / 评论(0) 分类 经济学人科技系列

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(184) / 评论(0) 分类 经济学人科技系列

Hi! This is Stever Robbins, host of the Get-it-Done Guys Quick and Dirty Tips to Work Less and Do More. Grammar Girl is working on her book this week and since I do a lot of public speaking, she asked me to talk about how to use similes and metaphors

发表于:2019-01-30 / 阅读(214) / 评论(0) 分类 英语语法 Grammar Girl

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(172) / 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(133) / 评论(0) 分类 英语新闻
学英语单词
accretion learning
alternate overarm stroke
anisotropic viscosity
assembly production orders
Bagnoles-de-l'Orne
be on the outlook for
Benford's law
block parity
Bromus rigidus
close harbor
colias erate formosana
compositional maturity
cotvalue
currying work
Dayi kilns
Demodex bovis
Derrylea
destrain
discharge counduit
distance of take off run
echapp? sur les pointes
edo memory
efficient score test statistic
electronic chronometic techometer
eutrophic wastewater
flameproof enclosure motor
flavenol
froppish
gas-solid chromatograph
gausie
gavan
geophagias
grid-like
grievous crime
gross proceeds of sales
haulage by train
head-chief
hemarthros
high temperature shor-time pasteurization
high-level output voltage
hybridogenic
hymenocephalus lethonemus
i-sowe
ice-cream-cone
impleasing
infectious bulbar paralysis
internal segment
jet attachment
laser writer
Laukāhi
lienterics
liquid core optical fiber spectrophotometry
lone electron
long-playing
maneuvering acceleration
Mauth
Meneng Dist.
methylglucamine diatrizoate
minocycline(antibacterial)
miscellaneous fees
moco cotton
model based vision
naphthacridinedione
Niedersachswerfen
one-stars
pattern path
peschka
Pescombi
phaeophycean tannin
photometrists
pipe gauge
plazana
postpermenant teeth
pressure boundary
psyra cuneata matsumurai
pulvini
remitting bank
rolling ball
safe management of ship
sand drift observation
skipper butterfly
square-head nut
sub-greenschist
sugar melter
tape control system
tape select switch
template-switch
tetramerism
Thaddaeus
thermally-bonded nonwoven fabric
true anthrax
truss column
type of economic organization
ultrasonic linear image diagnosis device
undecillions
uranyl hydroxide
Villa Iris
waistbands
xylosazone
zander's cell