乙基代硫酸

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(247) / 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(210) / 评论(0) 分类 VOA双语新闻 2014年1月

by Michael W. Flynn First, a disclaimer: Although I am an attorney, the legal information in this podcast is not intended to be a substitute for seeking personalized legal advice from an attorney licensed to practice in your jurisdiction. Further, I

发表于:2018-12-30 / 阅读(168) / 评论(0) 分类 法律英语 Legal Lad

NEW DELHI, Nov. 21 (Xinhua) -- Visiting chief of the United States Central Intelligence Agency (CIA) ((美国)中央情报局 ) Leon Panetta Saturday met Indian National Security Advisor M.K. Narayanan here to discuss terrorism in Pakistan and Afg

发表于:2019-01-07 / 阅读(198) / 评论(0) 分类 英语新闻

This is Scientific American's 60-Second Science. Im Steve Mirsky. Got a minute? On February 14th, the Union of Concerned Scientists issued a call for the protection of federal scientists. The UCS press conference took place in space made available by

发表于:2019-01-08 / 阅读(208) / 评论(0) 分类 Scientific American(二)月

President Obama is urging world leaders whore meeting in Washington today to act and not just talk about safeguarding nuclear materials. NPRs Scott Horsley has more. President Obama called nuclear terrorism one of the greatest threats to global secur

发表于:2019-01-08 / 阅读(261) / 评论(0) 分类 2010年NPR美国国家公共电台4月

By Kent Klein Washington 30 March 2008 The head of the US Central Intelligence Agency says al-Qaida has established a safe haven in the tribal areas near the border between Pakistan and Afghanistan, and that it presents a clear and present danger to

发表于:2019-01-12 / 阅读(205) / 评论(0) 分类 VOA标准英语2008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(221) / 评论(0) 分类 VOA标准英语2014年(一月)

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(186) / 评论(0) 分类 白领英语晨读

主餐一道:泛听练习 以下段落是摘自新闻里的一些重要信息,并不是一个段落的听写。空内信息可在本新闻中全部找到,大家可以根据这些信息复述新闻。 一、泛听建议: 1、完整听一遍,掌握

发表于:2019-01-22 / 阅读(204) / 评论(0) 分类 NPR边听边练

The announcement of John Durham's selection came as a report was published detailing the allegations of abuse by CIA agents. Agents threatened to kill a key terror(恐怖) suspect's children and sexually assault another's mother, it is claimed. Th

发表于:2019-01-31 / 阅读(201) / 评论(0) 分类 英语新闻

Easy away wins for Barca and Valencia in Copa del Rey MADRID, Oct. 30 (Xinhua) -- FC Barcelona strolled to a comfortable win away to Deportivo Alaves in the first leg of the third round of the Spanish Copa del Rey on Tuesday night. Goals from David V

发表于:2019-02-01 / 阅读(219) / 评论(0) 分类 英语新闻

1.W: Congratulations to you on your success! 祝贺您取得成功。 G: Thank you very much. 非常感谢。 2. W: Please accept my heartiest congratulations on your cooperation! 请接受我对您的合作表示最衷心的祝贺。 G: Thanks. 谢谢

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

WASHINGTONInformation from the private email account of CIA Director John Brennan is being made public, just days after hackers bragged they had broken in. WikiLeaks on Thursday posted several documents from the account, including what appear to be d

发表于:2019-02-02 / 阅读(211) / 评论(0) 分类 英语新闻

通常来说,自动贩卖机售卖苏打饮料,糖果和薯片。但这可和 TED 研究会员加布里埃尔加西亚-科伦坡所说的自动贩卖机不一样。这位艺术家希望设置人类 DNA 自动贩卖机,售卖提取自人体的 D

发表于:2019-02-05 / 阅读(197) / 评论(0) 分类 TED公开课:头脑游戏

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(201) / 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(216) / 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(225) / 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(241) / 评论(0) 分类 TED演讲教育篇

推论题(Inference):文章中有些论点/观点没有明确阐述,但却强烈暗示出来了。例如,文章论述的结果引出了,推论题就可能就造成结果的起因提问。如果文中有比较,推论题就可能问做比较的

发表于:2019-03-04 / 阅读(235) / 评论(0) 分类 托福英语
学英语单词
algae oil
altar-rails
audit hour
auols
automatic angle sensing
automatic serial reporting system
behaviorally anchored rating scales (bars)
beryllium selenate
best response
bi-statement ratios
bilipurpin
bioingredient
bookseller
Bridgman, Mount
bus input/output channel
carbon arrester
Cayetanensis
clack valve
coevolves
combined optical sound
conceptual definition
congery
consumable store
contact-tracings
creating
de-recognition
depth-to-width ratio
dippest
DLAB
ectolabium
end cutting edge
enter data
Euonymus japonicus
extended-chain crystal
Fathom Five National Marine Park
fetal tuberculosis
fibrillated-film fibre
fire-crotch
for sb's sake
fringe multiplication
Fuchs's coloboma
glass seam
gomm
hexanephric
horszowski
idjits
incompressible fluid
inerasably
installment plans
integrated circuit testing output
interferences
item of datum
kudde
lead-in lines
leopardsbane
Liapunov indirect method
live in the present
long shot
low-speed analogue computer
mangotoxin
matris
maximum usable flow
mechanical line-up
methought
metzner
mock-infected
New Zealand bellbird
newly-furnisheds
Nikon chorus
non-renewable energy resources
odorless solvent
omphalospinous
overlapping tolerance
photoneutrino processes
port of sailing
prop and stay
quetch
record locator
result expression
run-time
Sematan
semiblind
sequential fault diagnosis
sexual psychology
shandong province
shoulder pole
snackable
soloth (solodis soloti)
Somali peninsula
somatic senses
staff ship
static atom
stationarity indices
stir-crazies
straking
syncillin
teach
titicaca, lake
two-lane tunnel
zygodactyls