硫化铅试池

turn around to see you in a crowded place i watch for the emotions on a guarded face saying lead me on victim of a dream and a memory but when i try to break free you say to me c'mon lead me on a matt

发表于:2018-11-29 / 阅读(261) / 评论(0) 分类 英语歌曲第九辑

By Caty Weaver Broadcast: July 25, 2003 This is Bill White with the VOA Special English Environment Report. Researchers say they have found a way to reduce the cost of some 1)fuel cell production. The

发表于:2018-12-01 / 阅读(215) / 评论(0) 分类 VOA2003(下)-环境与健康

Unit 31 单词 1.airy 2.spacious 3.outfit 4.manly 5.fabric 6.individuality 7.reflect 8.reflective 9.underneath 10.obscene 11.abuse 12.conscious 13.biographical 14.corrupt 15.tactical 16.plateau 17.heroic 18.rotten 19.superhuman 20.labour 21.distill 2

发表于:2018-12-13 / 阅读(260) / 评论(0) 分类 北师大高中英语模块一讲解

I couldn't get over this mess. The federal government is confirming what Joan Glickman of Pompano Beach, Florida suspected all along. Tainted drywall from China is giving off a harmful gas that's turning her air-conditioning wiring black, causing it

发表于:2018-12-20 / 阅读(131) / 评论(0) 分类 cnn2009年(十一)月

In labs, bacteria may swim freely, but out in the world, including our bodies, bacteria often exists packed together, dense communities called biofilms, and these configurations can help them cause illness. Finding clues about how such bacteria group

发表于:2018-12-24 / 阅读(103) / 评论(0) 分类 Scientific American(八)月

For something that could revolutionize the world, its come along very slowly. The fuel cell was invented in 1839, but there was little development until the 1950s when NASA started to use them in space where they are still used today. Now, after yea

发表于:2018-12-30 / 阅读(176) / 评论(0) 分类 国家地理2008年

It might be the cheeks flushing with embarrassment or a voice choking with emotion. Our physical reactions can reveal what we truly feel. And some think they can show when someone's lying. Typically when a person tells a lie, they begin to sweat. I'

发表于:2018-12-30 / 阅读(227) / 评论(0) 分类 国家地理2008年

Mercury Fillings Seem Safer over Time A study in the journal Chemical Research in Toxicology finds that mercury on the surface of dental fillings slowly turns to an inert sulfide compound, which should keep the mercury from harming the nervous system

发表于:2019-01-02 / 阅读(195) / 评论(0) 分类 60秒科学

From VOA Learning English, this is the Health Lifestyle report. Garlic is one of the most common cooking ingredients around the world. Many dishes in Europe, Africa, Asia and the Americas use this strong-flavored vegetable. Garlic is similar to other

发表于:2019-01-12 / 阅读(186) / 评论(0) 分类 2016年VOA慢速英语(十二)月

By Bill Rodgers Washington 19 May 2008 Cell phones are an example of what is sometimes now called leapfrog technology, a product that allows developing nations the benefits of a reliable and extensive communications network without the heavy investme

发表于:2019-01-13 / 阅读(132) / 评论(0) 分类 VOA标准英语2008年(五月)

Discovery Could Lead to New Drugs to Block Deadly Viruses Viruses are strange things. Though there is some scientific question about whether viruses are alive or not, they do have a basic genetic structure that allows them to be biologically active.

发表于:2019-01-14 / 阅读(147) / 评论(0) 分类 VOA标准英语2013年(三月)

It might be the cheeks flushing with embarrassment or a voice choking with emotion. Our physical reactions can reveal what we truly feel. And some think they can show when someone's lying. Typically when a person tells a lie, they begin to sweat. I'm

发表于:2019-01-22 / 阅读(154) / 评论(0) 分类 自然百科2008年

Black Tongues and Stomach Aches Don: Oh, no, Ya?l, I think I'm having a medical emergency. Quick! Call an ambulance. Ya?l: A medical emergency, Don? Are you sure? You look fine to me! D: But I'm not. This morning, I had a terrible stomach ache. And n

发表于:2019-01-26 / 阅读(119) / 评论(0) 分类 英语听力文摘 English Digest

Sewage stinks. But bacteria can make it smell better. Oh, yeah? That's true. Certain forms of bacteria feasting on sewage give off hydrogen sulfide, a really malodorous chemical, and one of several that give sewage its pleasing smell. In general this

发表于:2019-01-26 / 阅读(128) / 评论(0) 分类 英语听力文摘 English Digest

By Victoria Cavaliere New York 16 October 2007 An annual stem cell research conference in New York has been bringing together some of the field's top scientists to discuss breakthroughs in stem cell research and what proponents call its long-term app

发表于:2019-01-31 / 阅读(153) / 评论(0) 分类 2007年VOA常速英语(十月)

By Paul Sisco Washington 17 April 2008 Federal regulators in Washington have approved plans to upgrade the nation's Emergency Alert System to include text messages to cellphones and other mobile devices. VOA's Paul Sisco has more in this Searching fo

发表于:2019-01-31 / 阅读(153) / 评论(0) 分类 VOA常速英语2008年(四月)

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(297) / 评论(0) 分类 英语新闻

Turn Off Your Cell Phone 关掉你的手机 We went to the movie the other night. I sat in an aisle seat as I usually do, because it feels a little roomier. Just as the feature was about to start, a blonde from the center of the row got up and starte

发表于:2019-02-07 / 阅读(262) / 评论(0) 分类 趣味英语

WASHINGTON, May 11 (Xinhua) -- Researchers at Brigham and Women 's Hospital (BWH), a teaching affiliate of Harvard Medical School, have identified(鉴定) a human lung stem cell that is self-renewing and capable of forming and integrating multiple bi

发表于:2019-02-18 / 阅读(215) / 评论(0) 分类 英语新闻

MADRID, March 4 (Xinhua) -- Real Madrid retain their 10 point lead at the top of the BBVA Primera Liga after the 25th round of matches thanks to a comfortable 5-0 win at home to Espanyol on Sunday. Espanyol have traditionally been easy victims for Ma

发表于:2019-02-25 / 阅读(186) / 评论(0) 分类 英语新闻
学英语单词
Acroceras
al-mu'tasim
albert abraham michelsons
alumina ceramic of black colo(u)r
bartended
blood-spattereds
Burmannia coelestis
calendographers
choson
Co Lung
conioscinella opacifrons
cosine series
counter die
course and speed made good over the ground
Cyclobalanopsis daimingshanensis
dahleruss
distance measuring wedge
El Jadida
energy chamber
erb's spastic paraplegia
family gobiesocidaes
fibrauretine
fibrinolytic enzyme
Fleischer keratoconus ring
floating fender
flowering crab apple
foot yaws
forssoth
gives me a hand
glaikit
glutamycin
Gnetatae
heated launder
highly ionized stellarmatter
hybrid balance
hydrostatic paradox
inclined flow turbine
infructescence
injection pneumonia
interior equipment
junior stock
Kabetan, Pulau
kalsilite
keidanrens
left-hand machine
Leptodermis dielsiana
long-sided
Luzhou City
macrocolumn
makashin
me generation
mouthbreathers
night vision glasses
noninterim
officemate
party mix
political cooperation
polysomics
potyvirus cowpea aphid-borne mosaic virus
power angle
power closing operation
powermac
primary squamous cell carcinoma of liver
project work
propense
purchaser
quartile deviation
Ragist
rapping rod
recognition site
resinfixed pigment printing
retained data
rock ranger
run round in circles
Rusa, R.
Saha equation
salient-pole field winding
shebo
SI (serial interface)
Singapore slings
slashingly
smooth two-dimensional manifold
smoothsort
solenoid operated switch
spareful
speed-transmitter
sphenosalpingostaphyline
spiral scaming
St.Louis encephalitis
stangen
sundrop
table longitudinal travel
take a cut in pay
torqued off
turn round and round
unequal twins
vacancy diffusion
vertical plan
wiggings
YASDs
yeast-leavening
zingiberis fluid