乙基苯聚氧化乙烯醚醇

Many of the Burgess specimens have now been assigned to living phyla just where Walcott put them in the first place. 许多布尔吉斯标本现在已经归到活着的动物的门里就是沃尔科特最初放置它们的地方。 Hallucigenia and s

发表于:2018-12-18 / 阅读(264) / 评论(0) 分类 万物简史

This is Scientific Americans 60-Second Science. Im Steve Mirsky. Got a minute? To keep your car purring, you have to change the oil. Such maintenance produces eight billion gallons of used motor oil annually. Some waste oil does get re-refined to pro

发表于:2018-12-24 / 阅读(211) / 评论(0) 分类 Scientific American(三)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(283) / 评论(0) 分类 科技之光

This is Scientific American's 60-Second Science. I am Steve Mirsky.Got a minute? Talk about your vicious cycles. A new study finds that belly fat could be making you hungrier. Which would lead to more belly fat. The research was performed at the Univ

发表于:2019-01-08 / 阅读(251) / 评论(0) 分类 Scientific American(四)月

Algae seem harmless enough. These precursors to plants thrive throughout the world's waters. But these single-celled plants have global consequences. We can thank them for oxygen in the atmosphere, oil in the lithosphere as well as dead zones in the

发表于:2019-01-08 / 阅读(259) / 评论(0) 分类 Scientific American(十一)月

This is the VOA Special English Agriculture Report. Companion planting is the idea that when some crops are planted together, they help each other grow. These compatible plants generally have similar needs for nutrients, soil and moisture. Advice fo

发表于:2019-01-11 / 阅读(261) / 评论(0) 分类 VOA慢速英语2009年(八)月

Agriculture Report - Friends With Benefits, in the Plant World 农业报道 - 植物世界的互惠互利 From VOA Learning English, This is the Agriculture Report in Special English. 这里是美国之音慢速英语农业报道。 Companion plantin

发表于:2019-01-12 / 阅读(257) / 评论(0) 分类 2013年VOA慢速英语(三)月

AUDIE CORNISH, HOST: This is what pillow talk on television sounds like these days. (SOUNDBITE OF TV SHOW, I LOVE DICK) KATHRYN HAHN: (As Chris) Why do you think that we are - have been monogamous all these years when we don't even believe in it? Lik

发表于:2019-01-17 / 阅读(282) / 评论(0) 分类 2017年NPR美国国家公共电台5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(206) / 评论(0) 分类 白领英语晨读

Students at the University of Canterbury had only one and a half days of classes before the earthquake on Feb 22nd. The university then closed for three weeks. A number of buildings had red stickers, including the two newest buildings Commerce and La

发表于:2019-01-27 / 阅读(251) / 评论(0) 分类 新西兰英语

This news item is about co-habitation, couples who live together without being married. Our newspapers reported this week on the National Marriage Project report from Rutgers, the State University of New Jersey, in the United States. Why are we inter

发表于:2019-01-27 / 阅读(143) / 评论(0) 分类 新西兰英语

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(231) / 评论(0) 分类 英语博客 A cup of English

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(269) / 评论(0) 分类 2007年VOA标准英语(五月)

WASHINGTON, Aug. 4 (Xinhua) -- Researchers have found a way to turn mouse embryonic stem cells into sperm and this finding opens up new avenues for infertility research and treatment, according to astudy published Thursday in the online edition of jo

发表于:2019-02-04 / 阅读(406) / 评论(0) 分类 英语新闻

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(276) / 评论(0) 分类 英语博客 A cup of English

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(222) / 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(236) / 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(244) / 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(264) / 评论(0) 分类 TED演讲教育篇

If you're planning a trip to Greece in the future, you'll want to schedule a visit to the temple of Apollo at Delphi. This famous temple was the home of the Pythia, a specially chosen and trained woman who according to legend channeled the voice and

发表于:2019-02-23 / 阅读(237) / 评论(0) 分类 英语时差8,16
学英语单词
absolute black body
admissible arc
al mafraq (mafraq)
alphabetiform
amended claims
American ash
andringitra mts.
aptapurification
automatic telephony
back stop motion
bbgky hierarcky
breages
break into pieces
broad-band communication
buoying
car nose
cavitation effect
cermet of life-saving appliance
chromosomal variation
clangor
coleoptile length
complex-conjugate matrix
composite beam bridge
condes
constant factor
cooling type dehumidifier
cyclic electron flow
cylinder type moldboard
data terminal equipment (dte)
Daveluyville
deposition nucleus
dextrococaine
diaphragm packing loss
discography
disharmony between
downhole source
dual pen recorder
entry transverse chart
Eschweiler-Clarke reaction
ferric chloride gargle
file option
fire avalanche
frameup
furniture of one's pockets
genck (genk)
glanite
go hang
Hemsjö
index of producer price
job confirmation
Korotkoff's test
lackners
lahey
Lamoille County
legal adviser
lessor of small plots
little gut
low-heat micro-expanding cement
machine-aided translation
melki
message transfer protocol (p1 protocol)
miltomates
misbranded drug
miss an accident
moment table
network definition
optix
order of the court
ouretic
pammy
partial neck dissection
periodic system
pleuropericardial adhesion
postorogenic pluton
powderise
power hydrogen
present value (pv)
Psylloidea
pterygopalatine ganglion
puncture-resistance
rate schedule
rebluff
rope cager
safety island
ship-to-satellite communication
ST_games-and-activities_board-games
substoichiometric analysis
suffumige
support-rig downhole drill
system induced contaminants
tappan zee bridges
target path
Tautoklin
three-tenths
towing basin
transfer control protocol
tropical monsoons
truck-air-truck
ult
upright type
waynesville
weight-displacement ratio