[化] N-乙基萘胺

AS IT IS 2014-05-25 Scientists Search for New Ways to Stop Mosquitoes 科学家们寻找新的方法来对付蚊子 The sound of a mosquito can mean trouble in many parts of the world. The bite of a mosquito can be deadly. Today, we will hear about s

发表于:2018-12-08 / 阅读(153) / 评论(0) 分类 2014年VOA慢速英语(五)月

美科学家研发新一代驱蚊剂 In many regions of the world, mosquitoes are a seasonal pest. In other regions, they carry serious diseases like malaria. The World Health Organization estimates that almost 630,000 people died of malaria-related

发表于:2018-12-19 / 阅读(109) / 评论(0) 分类 VOA双语新闻 2014年1月

Identity Thieves’ New Ploy: Pharming 2 How do people pharm? Pharming scams take a few different forms: Attackers could use malicious code, such as a virus, planted on a user’s PC to track keystrok

发表于:2018-12-19 / 阅读(198) / 评论(0) 分类 彭蒙惠英语

AA: I'm Avi Arditti with Rosanne Skirble, and this week on WORDMASTER: our friend English teacher Lida Baker joins us from Los Angeles to talk about expressions of sympathy. LIDA BAKER: The reason that this came up for me is that a friend of mine los

发表于:2018-12-30 / 阅读(99) / 评论(0) 分类 词汇大师(Wordmaster)

Indra Krishnamurthy Nooyi is the chairwoman and CEO of PepsiCo, which is the world's fourth-largest food and beverage company. She broke the mould at PepsiCo as all previous CEOs were white American men. Nooyi was fifth on Time magazines 2007 list of

发表于:2019-01-01 / 阅读(127) / 评论(0) 分类 各国名人英文介绍

Sir Timothy Berners-Lee is a British computer scientist who invented the World Wide Web. He received a knighthood from the British Queen for his efforts (so he is called Sir). He is director of W3C, which looks after the Webs development. A leading B

发表于:2019-01-01 / 阅读(179) / 评论(0) 分类 各国名人英文介绍

PEOPLE IN AMERICA - May 12, 2002: Dorothy West By Doreen Baingana VOICE ONE: I'm Shirley Griffith. VOICE TWO: And I'm Steve Ember with the Special English Program, PEOPLE IN AMERICA. Every week, we te

发表于:2019-01-07 / 阅读(181) / 评论(0) 分类 People in America

Maggie: Why the long face? Joe: I just heard that I wont be rehired for next year. Maggie: Thats awful! What a rotten thing for the management to do. Joe: Ill be okay, but Monica is losing her job, too. Maggie: Oh no, not Monica, too. Im so sorry to

发表于:2019-01-11 / 阅读(96) / 评论(0) 分类 地道美语播客

1.- I have a cold. 我感冒了。 - I'm sorry to hear that. 听到这消息我很难过。 2. - What's wrong (the matter, the trouble)? You look unhappy. 怎么啦?您看起来脸色很不好。 - I failed the exam. 我考试没通过。 - Don't t

发表于:2019-01-11 / 阅读(131) / 评论(0) 分类 实用英语

Key Sentences(重点句子) 474.We're sorry to learn that you were injured in an accident. 得知你在事故中受伤,我很遗憾。 475.How are you feeling now? 现在感觉怎么样? 476.We all wish you a quick recovery. 我们都希望

发表于:2019-01-11 / 阅读(116) / 评论(0) 分类 实用英语

The best way to improve U.S. relations with Latin America is by fixing the U.S. economy, according to analysts who testified before a Congressional committee in Washington on Wednesday. They told U.S. lawmakers that President Barack Obama should add

发表于:2019-01-13 / 阅读(115) / 评论(0) 分类 VOA标准英语2009年(三月)

Promising Mosquito Repellent Announced美科学家研发新一代驱蚊剂 In many regions of the world, mosquitoes are a seasonal pest. In other regions, they carry serious diseases like malaria. The World Health Organization estimates that almost 6

发表于:2019-01-14 / 阅读(105) / 评论(0) 分类 VOA标准英语2014年(一月)

Surgeon General Murthy Wants America To Face Up To Addiction play pause stop mute unmute max volume 00:0003:50repeat repeat off Update Required To play the media you will need to either update your browser to a recent version or update your Flash plu

发表于:2019-01-16 / 阅读(107) / 评论(0) 分类 2016年NPR美国国家公共电台11月

One Police stops on police vehicle outside one Victoria's Bar. After the preparation, as necessary arrests?, this liquor drive slightly mixes. Suddenly he sees to have a young people shakely goes out from bar, spend the many figures only then finds

发表于:2019-01-17 / 阅读(85) / 评论(0) 分类 白领英语晨读

新编英语教程第六册unit01_1_Love_Thy_Neighbor

发表于:2019-01-25 / 阅读(179) / 评论(0) 分类 新编大学英语阅读部分

Ganso could be out until 2013, says physio RIO DE JANEIRO, Sept. 28 (Xinhua) -- Brazil midfielder Paulo Henrique Ganso could be forced to wait until next year to make his debut for new club Sao Paulo. Ganso, who joined the Brazilian top division outf

发表于:2019-02-06 / 阅读(170) / 评论(0) 分类 英语新闻

On its website, a history of the company makes no mention of leador indeed of Thomas Midgleybut simply refers to the original product as containing a certain combination of chemicals. 在它的网站上,公司的历史没有提及铅──也没有提

发表于:2019-02-17 / 阅读(111) / 评论(0) 分类 万物简史

By counting back through these layers and measuring the amount of lead in each, he could work out global lead concentrations at any time for hundreds, or even thousands, of years. The notion became the foundation of ice core studies, on which much mo

发表于:2019-02-17 / 阅读(124) / 评论(0) 分类 万物简史

Lead is a neurotoxin. Get too much of it and you can irreparably damage the brain and central nervous system. Among the many symptoms associated with overexposure are blindness, insomnia, kidney failure, hearing loss, cancer, palsies, and convulsions

发表于:2019-02-17 / 阅读(119) / 评论(0) 分类 万物简史

If you were going to a restaurant and wanted a healthier option, 如果你去饭店,你想吃得健康一点, which would you choose, grilled or fried chicken? 你会选择哪种食品呢,烤鸡还是炸鸡? Now most people would answer grill

发表于:2019-02-21 / 阅读(139) / 评论(0) 分类 TED演讲教育篇
学英语单词
a remodelled army
axis of vision
backing turbine
bar-shaped
black bamboos
Bleckede
Bottni's operation
bronchial ciliated columnar epithelial cell
change horses
chirurgy
classware
clearness of articulation
colour doppler
commendry
course control
critical crack depth
cross that bridge when one gets to it
crowd surfing
decreasing cost
descried
diboron
dimuon event
disgracement
eat sb for breakfast
electric blower single-phase
extein
farid
feezes
fixed strut landing gear
flint-glazing calender
forcing mating
from hell to breakfast
front mold
gas thermometry
general schematic
glasspox
grinder fixture
groggery
ground speed check
Gullstrand's law
infra-eye
interhalogen compound
land on
land survey
Leos
Ligusticum sinense
line formation
lipopathy
men's rooms
metopolophium euryae
metrorrhagic
misthrown
murder-holes
neuroelectric
noctilionid
non-pressurized interior
obstruction of pylorus
oesophagalgia
Ojuelaite
P.R.F.
pantisocracy
phlebothrombosis of leg
photoreaction
positive sensitizer
quadrupolar-seam coil
quasi easement
radiopilot
reefable
relation direct access method
relative wear of the tool flank
rough patch
San Carlos del Zulia
SAR service
satellite detection
school television
sedyl
serocellular
short ciliary nerves
silicon breast implant
singular attractor
singular value decomposition of image matrix
sizable lump
slipping property
spiritual sovereignty
splayed support
spokescat
start-pilot device
steal the limelight
structure retrieval
struggle-buggies
tapered tail
this second
three way jack
totally unordered set
tourism development
Trinkhalle
tyrers
under-bellies
ungilt
upstream chamber
veratroylzygadenine
Vladivostok