[有机化学] 七氯四氢甲桥茚

Editors note: This is the third episode of four-part series on verb tenses. Be sure to listen to part one and part two first. For VOA Learning English, this is Everyday Grammar. Today we are going to talk about the perfect verb tenses. Perfect tenses

发表于:2018-11-27 / 阅读(512) / 评论(0) 分类 2016年VOA慢速英语(十二)月

This is Scientific American Sixty Seconds Science, I'm Sophie Bushwick, got a minute? When Mexican tetra fish moved into darker caves long ago, they evolved to deal with the dark by becoming albino and going blind. A new research shows that the chang

发表于:2018-12-24 / 阅读(209) / 评论(0) 分类 Scientific American(一)月

T Tanshinone IIA 丹参酮IIA Tanshinone I 丹参酮I Tanshinone IIB 丹参酮IIB Taraxasterol 蒲公英甾醇 Taraxerol 蒲公英赛醇 Tauro ursodesoxy cholic acid 牛磺熊去氧胆酸 Taxifolin 花旗

发表于:2019-01-03 / 阅读(193) / 评论(0) 分类 医务英语

D Dahurian Rhododendron Leaf P.E 满山红提取物 Daidzein 大豆甙元 Daidzin 大豆甙 Dandelion P.E 蒲公英提取物 Daphnetin 瑞香素 Daphnin 瑞香甙 Daucosterol 胡萝卜甙 Dauricine 蝙蝠

发表于:2019-01-03 / 阅读(209) / 评论(0) 分类 医务英语

By Matt Steinglass Hanoi 06 December 2006 On a visit to strengthen efforts to provide HIV/AIDS treatment, former U.S. President Bill Clinton strolled the streets of the Vietnamese capital, met with young Vietnamese and discussed the work of the newl

发表于:2019-01-07 / 阅读(198) / 评论(0) 分类 2006年VOA标准英语(十二月)

This is scientific Americans 60-Second Science. Im Cynthia Graber. This will just take a minute. Predicting a hurricanes strength and speed is crucial in order to save property and lives. Right now, the only way to get accurate information is to fly

发表于:2019-01-08 / 阅读(206) / 评论(0) 分类 Scientific American(四)月

直到我遇见你 The Sunstreak - Until I Met You Until I Met You The Sunstreak I once believed that there was no one for me, until I met you, But I couldnt see how happy I could be, until I met you, Until I met you, You Standing alone, no one to ca

发表于:2019-01-16 / 阅读(299) / 评论(0) 分类 好听的英文歌曲

Havent Met You Yet by Michael Buble I'm not surprised Not everything lasts I've broken my heart so many times I stop keeping track Talk myself in I talk myself out I get all worked up And then I let myself down I tried so very hard not to loose it I

发表于:2019-01-16 / 阅读(224) / 评论(0) 分类 听歌学英语

深情爵士男声Michael Buble Haven't Met You Yet Michael Buble I'm Not Surprised Not Everything Lasts I've Broken My Heart So Many Times, I Stop Keeping Track. Talk Myself In I Talk Myself Out I Get All Worked Up And Then I Let Myself Down. I Trie

发表于:2019-01-16 / 阅读(367) / 评论(0) 分类 好听的英文歌曲

'Hanoi Hannah,' Whose Broadcasts Taunted And Entertained American GIs, Dies play pause stop mute unmute max volume 00:0002:18repeat repeat off Update Required To play the media you will need to either update your browser to a recent version or update

发表于:2019-01-17 / 阅读(166) / 评论(0) 分类 2016年NPR美国国家公共电台10月

Locals in Uganda are lauding a construction project financed by China which is creating the East African country's largest hydroelectric power plant. The 600-megawatt (MW) Karuma Hydroelectric Power Plant is located at the mid-western district of Kir

发表于:2019-01-19 / 阅读(247) / 评论(0) 分类 2018CRI中国国际广播电台

HYDROCEPHALUS Merriam-Websters dictionary defines hydrocephalus as an abnormal increase in the amount of cerebrospinal fluid within the cranial cavity that is accompanied by expansion of the cerebral ventricles, enlargement of the skull and especiall

发表于:2019-01-23 / 阅读(352) / 评论(0) 分类 英文短篇小说

新编英语教程第六册unit03_2_The_Night_the_President_Met_the_B

发表于:2019-01-25 / 阅读(244) / 评论(0) 分类 新编大学英语阅读部分

67 维生素C能否破坏DNA? DATE=7-11-01 TITLE=SCIENCE REPORT - Vitamin C and DNA BYLINE=Nancy Steinbach (Start at 59

发表于:2019-01-30 / 阅读(216) / 评论(0) 分类 科技之光

By Matt Steinglass Hanoi 13 July 2006 A Hanoi museum exhibit recalling the hardships of life under the communist command economy is proving a hit. Through this rare expose of life before Vietnam embraced the free market 20 years ago, Vietnamese are

发表于:2019-01-31 / 阅读(210) / 评论(0) 分类 2006年VOA标准英语(七月)

So there I was at seven thirty in the a.m., perched on my scooter at an intersection waiting to turn. I was sitting at the lights lost in my own thoughts when all of a sudden I became aware of a presence no, not a poltergeist; a bloke on a mountain b

发表于:2019-02-07 / 阅读(241) / 评论(0) 分类 阅读空间

Voice 1 Welcome to Spotlight. Im Liz Waid. Voice 2 And Im Adam Navis. Spotlight uses a special English method of broadcasting. It is easier for people to understand, no matter where in the world they live. Voice 1 This city is busy. Hundreds of motor

发表于:2019-02-14 / 阅读(177) / 评论(0) 分类 环球英语 Spotlight

10 Getting The Lead Out 第十章 把铅撵出去 In the late 1940s, a graduate student at the University of Chicago named Clair Patterson (who was, first name notwithstanding, an Iowa farm boy by origin) was using a new method of lead isotope measur

发表于:2019-02-17 / 阅读(218) / 评论(0) 分类 万物简史

Voice 1 Hello. Im Marina Santee. Voice 2 And Im Rachel Hobson. Welcome to Spotlight. This programme uses a special English method of broadcasting. It is easier for people to understand, no matter where in the world they live. Voice 1 It is 1991. A yo

发表于:2019-02-21 / 阅读(170) / 评论(0) 分类 环球英语 Spotlight

His's perivascular Chinese希斯血管周隙(脑与脊髓血管动脉外膜和神经胶质血管周围界膜之间的间隙) His's zones Chinese希斯区(胚神经管的四个纵增厚束) Histology Chinese组织学 Hitzig's gridle Chinese希茨希带(与乳房同高的一环状痛觉缺失区) Hitzig's test Chinese

发表于:2019-02-26 / 阅读(251) / 评论(0) 分类 英文语法词汇
学英语单词
Admiralty Range
allotment control system
amortization money table
animal taxonomy
antiexpulsion
ardmona
augmentative communication strategy
aurantiol
Bermeja, Pta.
birall
both side-band
bottom section
butterfly governor
Calvarrasa de Arriba
camara
channel allocation and routing data
company commander
confessory
counter-balance moment
crossover interlocking
damage resistance
dehydration rate
diadexis
Drew Point
Ducobee-hy
Ebino
effective wave length
electroplating bath
enthusiasm
episcopal
epl
equal-area figures
First-day
fleecings
foam mould
four-woods
gastrograffin
gear ratio
gluteus minimuss
goodenough
Gopher server
ground clip
high-ratio gear
horizontal line
Hunting Valley
igniting charge
indignifies
johnstonii
l-tryptophane decarboxylase
legal cost
live well
made haste
Mantorp
Mehaïguène, Oued
mercery
metoposcopy
near ... time
non return magnetometer
non-plastic powder
nonrandom injury
north-easterly
ophthalmotrop
output variable
person-day
phosphopantheteinyl
photodevices
phototelegraphs
plastic yield value
polutions
potential and current transformer
preambulates
quasers
right-hand fusee
Sanchuniathon
satellite telecommunication system
seroscopy
space charge parameter
spina musculi geniohyoidei
stern hawsepipe
sun-diamond
supercorporation
systeme probatoire d'observation de laterre
take a cut
talk to a brick wall
te (transverse-electric)
texis
thread rolling flat dies
time cut-off
toblerone
trichodesmium hildebrandtii
trichomonas fetus
unassaulted
unevaluated operand
unsaw
unsete
Utah L.
ventilation and air-conditioning installation
violent crimes
voltage phasor
wood bandle cross peen hammer
you don't say!