[化] 胶体硫
[医] 胶态硫

For 40 years, Paul Karason was a fair skin son of the American Northwest, freckles and reddish-blond hair. Like most people who grow older, Pauls hair turned white. But how does he explain this? What was that Aha moment were you think, you know, my

发表于:2018-12-11 / 阅读(92) / 评论(0) 分类 访谈录2008

However, I managed to get a hold of a Borane eventually, and here is the beast. 无论如何,我最终得到了一些硼烷,这就是那个怪物。 And it really does have the same -- if you calculate, if you measure the vibrational frequencies,

发表于:2018-12-19 / 阅读(78) / 评论(0) 分类 TED演讲教育篇

[00:05.75]The American space agency has released to the public the first of many new pictures of Jupiter's Moon,Io. [00:15.41]NASA's Galileo spacecraft took the pictures last July and October using both black and white film and color film. [00:25.73]

发表于:2018-12-26 / 阅读(71) / 评论(0) 分类 美国英语听力80篇

Listen this way听力教程第二册-17

发表于:2018-12-27 / 阅读(162) / 评论(0) 分类 Listen this way听力教程

-Sheldon:Worst renaissance fair ever. renaissance:文艺复兴 fair:集市,集会 史上最逊的文艺复兴集会。 -Leonard:Please let it go, Sheldon. 别再墨迹了Sheldon。 -Sheldon:It was rife with historical inaccuracies. be rif

发表于:2019-01-01 / 阅读(125) / 评论(0) 分类 生活大爆炸第二季

DEVELOPMENT REPORT - Aid Group Designs System to Make Dirty Water Safe to Drink By Jill Moss Broadcast: Monday, October 17, 2005 This is Steve Ember with the VOA Special English Development Report. Ea

发表于:2019-01-02 / 阅读(70) / 评论(0) 分类 农业与发展

Broadcast: May 5, 2003 By Jill Moss This is the VOA Special English Development Report. Each year more than two-million people die from diseases caused by drinking dirty water. That is the estimate of

发表于:2019-01-04 / 阅读(117) / 评论(0) 分类 VOA2003(上)-社会广角

This is the VOA Special English Development Report. Jeffrey Schwarz coordinates the water filter project for North America from the Carnegie Library Pot Shop, adapting technology developed in Central America during Hurricane Mitch in 1998 The Braddo

发表于:2019-01-11 / 阅读(90) / 评论(0) 分类 VOA慢速英语2009年(六)月

But methane is actually odorless, too. 但是甲烷也是无味的。 Well then, what stinks? 那么,什么东西这么臭? The foul smell is usually due to volatile sulfur compounds, such as hydrogen sulfide and methanethiol, or methyl mercaptan

发表于:2019-01-17 / 阅读(103) / 评论(0) 分类 TED演讲教育篇

18Then Bildad the Shuhite replied: 2When will you end these speeches? Be sensible, and then we can talk. 3Why are we regarded as cattle and considered stupid in your sight? 4You who tear yourself to pieces in your anger, is the earth to be abandoned

发表于:2019-01-26 / 阅读(156) / 评论(0) 分类 约伯记

A healthy liver plays a key role in relieving digestive issues, such as a sluggish metabolism, gas, bloating, and constipation. It regulates blood sugar levels, which, when out of balance, can cause sugar cravings, fatigue, and fuzzy thinking. 健康的

发表于:2019-02-01 / 阅读(146) / 评论(0) 分类 阅读空间

Effective pollution controls adopted in 161 major Chinese cities have greatly improved air quality, a green organization said last Monday. 一家绿色环保组织上周一表示,中国161座主要城市采取的有效的污染防治措施使空气质

发表于:2019-02-04 / 阅读(80) / 评论(0) 分类 英语新闻

Five widely used Chinese traditional medicines (TCMs) for treating cough have been found to have a high sulfur content, the Economic Information Daily reported on last Friday. 据《经济参考报》上周五报道,5种常见的中医止咳药被检

发表于:2019-02-04 / 阅读(57) / 评论(0) 分类 英语新闻

Political Advisors Hand Proposals on Environment Protection Environmental protection is going to be one of the focus-areas for both the political advisory body and the lawmakers on the National People's Congress. Wan Jie, a member of the national com

发表于:2019-02-06 / 阅读(97) / 评论(0) 分类 英语新闻

You need to take proper care of your eyes to maintain good eyesight. There are few fundamental rules that have to be done for good eye care. As you know very well that exposure to sun is very bad for the eyes. Similarly, if you use computer for long

发表于:2019-02-09 / 阅读(143) / 评论(0) 分类 英语小短文

Researchers from Xian Jiaotong University in Northwest Chinas Shaanxi Province have developed a way to eliminate air pollutants during the coal-burning process, which they hope would significantly address the countrys smog problems. 来自中国西北的

发表于:2019-02-13 / 阅读(145) / 评论(0) 分类 英语新闻

China's State of the Environment Report for 2012 suggests that the overall quality of China's environment is balanced and stable. The condition of underground water remains to be a big concern. Li Dong has the details. Released annually by China's Mi

发表于:2019-02-14 / 阅读(207) / 评论(0) 分类 世界各地新闻集锦

The World Health Organization, upgrading a previous warning, said June 12 that diesel exhaust causes cancer and called for tighter emissions standards, comparing the risk of exhaust to second-hand cigarette smoke. Tuesdays announcement comes after in

发表于:2019-02-17 / 阅读(86) / 评论(0) 分类 英语新闻

The proportion of hazardous metal toxins in PM2.5 in Beijing has decreased for the past three years, which experts lauded as the initial achievement of the city's anti-smog measures. 过去三年,北京市PM2.5中对人体有害的金属毒素的比重

发表于:2019-02-18 / 阅读(119) / 评论(0) 分类 英语新闻

Once it seemed that the ocean floor was a desert of darkness. As everyone knew, sunlight was what made life possible by fueling photosynthesis, and sunlight can penetrate only the first few hundred yards of the oceans great depths. Lower, a few

发表于:2019-02-21 / 阅读(72) / 评论(0) 分类 托福英语
学英语单词
a fair field and no fair
aids-defining
alizarin(e) red
Amount for General Average Sacrifice of Cargo
at risk to
austin's
ayyy
B.E.M.
babysitting
balster
bikathon
Bromussyl
carmoes
carstal
cataloged file
chemosusceptibility
cherups
cillo
cisposition
classical seat
clerye
concave circular saw
cumberland l.
damage control system
darraghs
data tape
debt receivable
deficency
design for advertisement
diazopropane
disc-shaped cavity
dither arm
dried whole egg
duocentric motor
Dupad
emergency risks
ensemble de catastrophes
esterize
family Leporidae
feticide
Finwhales
floor spring
fluoro trichloroethylene
forebraces
functional verification
ganged up
gypsy leave
halogenated irritating liquids
hot-glue
hot-water calorifier
indian millets
inroom
internal exchange site
intraperitoneal hemorrhage
jubilation
livery of woe
moa-nalos
movie-house
neurodiastasis
nitrogen expansion
non-individuals
non-uniform shaft
o-bromobenzyl chloride
overproportion
pen-light
polarographic curve
polymethacrylonitrile
priistas
property painter
pssh
punch compressed file
push-pull bridge neutrallzation
recall level average
reflected load
ribose nucleic acid
ridged
Rozden
sabine r.
satirizer
seigniorages
Sobolevskiy Rayon
soil regionalization
somatomes
soundage
spigot discharge
sprites
stable doors
superessentiality
teach mode
Timken bearing
transnationally
Trollius farreri
tropical aubalpine forest
UNCHE
unite into
urogenital apparatuss
vorticity kinematics
walking-beam continuous furnace
Wouw
wrangleth
Yakacιk
zwitterions