对甲氧乙苯酚

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(234) / 评论(0) 分类 2014年VOA慢速英语(五)月

This is the VOA Special English Health Report. Bisphenol A is a chemical widely used to make hard, polycarbonate plastic. Food storage containers, reusable water bottles and baby bottles are among the many different products that may contain BPA. BP

发表于:2018-12-15 / 阅读(218) / 评论(0) 分类 VOA慢速英语2008年(九)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(199) / 评论(0) 分类 VOA双语新闻 2014年1月

This is scientific American sixty seconds science. I am Amy Kraft. Got a minute? Sweat potatoes contains fiber, vitamin A and calcium, but the way that scientists think they can make them even more healthful is literally shocking. Researchers found t

发表于:2018-12-24 / 阅读(168) / 评论(0) 分类 Scientific American(八)月

86 去痛片须慎用 DATE=8-16-01 TITLE=SCIENCE REPORT - OxyContin Warning BYLINE=Jerilyn Watson (Start at 1'02

发表于:2019-01-02 / 阅读(224) / 评论(0) 分类 科技之光

This is Scientific American's 60-Second Science. I'm Cynthia Graber. This will just take a minute. Landfills produce methanewhich can be valuable as an energy source. But scientists haven't known why landfills make so much methane. The solid waste in

发表于:2019-01-08 / 阅读(241) / 评论(0) 分类 Scientific American(四)月

1. The Dow Industrials rose nearly 142 points after more than a 500-point drop Monday. The move came as the Fed left interest rates unchanged and also pumped 70 billion dollars into the financial system. 2. Residents of Galveston in Texas have been

发表于:2019-01-11 / 阅读(276) / 评论(0) 分类 美联社新闻一分钟2008年(九)月

Synthetic Drug Problematic for US Authorities Augusta County, Virginia, is a rural county in the Blue Ridge Mountains, two and a half hours southwest of Washington. It has a big problem. Sheriff Randy Fisher says Augusta County was once known as the

发表于:2019-01-13 / 阅读(269) / 评论(0) 分类 VOA标准英语2012年(六月)

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(173) / 评论(0) 分类 白领英语晨读

Beginners. Well, it's time for a new dog. For the past year, we have been a one dog family. But, you know, our dog, Rosie, is a wildly social lady. She goes crazy any time she meets another dog, a cat, a mouse, or a bird, let alone a human. But, the

发表于:2019-01-28 / 阅读(193) / 评论(0) 分类 英语博客 A cup of English

Raw anti-drug campaign awakens state Ted Landphair | Missoula, Montana 04 February 2010 Photo: Montana Meth Project Adults across Montana were frightened by what they were seeing. Some hardly recognized their meth-addled teenagers. Related Links Mont

发表于:2019-02-02 / 阅读(198) / 评论(0) 分类 VOA标准英语2010年(二月)

By Melinda Smith Washington 14 May 2007 Top executives of the company that makes a powerful painkiller called Oxycontin admitted this week they lied about the drug's addictive qualities in order to boost sales. As VOA's Melinda Smith reports, worldwi

发表于:2019-02-03 / 阅读(242) / 评论(0) 分类 2007年VOA标准英语(五月)

Beginners. Today, Foxy had an appointment with the vet for vaccinations and a general check-up. She is about eight months old, so she needed her second set of vaccinations. The vet also needed to see if her growth was normal and healthy. I put her in

发表于:2019-02-07 / 阅读(222) / 评论(0) 分类 英语博客 A cup of English

BRUSSELS, May 31 (Xinhua) -- Baby bottles containing the substance Bisphenol A (BPA) would have to be pulled from the shelves across the European Union (EU) starting from Wednesday, in a milestone move to better protect the health of EU citizens, an

发表于:2019-02-08 / 阅读(206) / 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(190) / 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(205) / 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(216) / 评论(0) 分类 万物简史

Tea has complex compounds called polyphenols which are believed to help the arteries to relax or dilate, thus enabling a smoother flow of blood. 茶中含有一种叫多酚的复杂混合物。这种物质据信能帮助放松或扩张动脉,从而使

发表于:2019-02-17 / 阅读(239) / 评论(0) 分类 实用英语

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(231) / 评论(0) 分类 TED演讲教育篇

Voice 1 Hello. Im Ruby Jones. Voice 2 And Im Marina Santee. 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. A small candle burns. It re

发表于:2019-02-21 / 阅读(181) / 评论(0) 分类 环球英语 Spotlight
学英语单词
acephali
aerodynamics of turbine
air quantity control
alternation of generations
ant-likest
Balje
ball and lever valve
bayonet cap finish
bichromate
blumpkins
boron neutron detector
camaros
chronomodulated
Communist Manifesto, The
compo mould
convective-diffusion equation
cooling load calculation
corallaceous
cri de coeur
cryoseisms
culture-dependent
daylight change
days of atonement
diprosopic monstrosity
e-mails
electron excitation function
end in a draw
enguard
epimorphism
Etofibrat
eugenol acetamide
excessivenesses
external integration tools
extra variable
extrapolatory
fine ware
fixed pinning model
geometric approximate correction
geosequester
headhigh
hofbrau
hypothesis loop
in practice
incineration of radwaste
insulation monitoring and warning device
internal oblique ridge
Klinoaugite
linear element
Longonot Vol.
macrofoam
maggette
main speed reduction box
martonen
maximum entropy spectrum analysis
maximum peak inverse voltage
mccormicks
mudery
multimerizing
NAPTIC
non-causative
nonpredetermined
on line mass spectrometry
penguineries
pre-excited CO laser
pre-supposeds
prenticeship
produits
Prosp.
PureBasic
qingkailing oral liquid,qingkailing koufuye
rattan
rescuing work
resoaked
retinal burn
reversible capacitance characteri-stic
rigid layer
rochefoucauld
selfblocking
sepia toning
sharted
sinker
spider angioma
stalefish
statistical theory of errors
stauntonia hexaphylla decne.
steering-wheel- releasing stability test
sucking jaw
sydromes
take a good look at
teleiotic
three-balls
thunderstorm cell
thyreoprival tetany
tinabal
two-compartment subdivision
valley-moraine lake
variable quantity
vi lenin
vomiturition
warm the cockles of the heart
yellow tongue
zygomaticum