准氢电极

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发表于:2018-12-01 / 阅读(186) / 评论(0) 分类 用Mp3背六级单词

This is Scientific American's sixty seconds science, I'm Christopher Intagliata. Got a minute? Instead of installing solar paint on your roof how about just giving a house new paint job of cause you'd have to sure to use solar paint. That's what to a

发表于:2018-12-02 / 阅读(179) / 评论(0) 分类 Scientific American(十二)月

The composition of the sun lies in this bar code. 这个条码说明了太阳的组成 All the thin lines are caused by tiny amounts of complex elements 这些细细的线条,都是微量复杂元素造成的 metals like iron and magnesium. 好比说

发表于:2018-12-07 / 阅读(172) / 评论(0) 分类 太阳科普

Broadcast: February 14, 2003 By George Grow This is the VOA Special English Environment Report. President Bush has offered a plan to speed development of technology that uses hydrogen as fuel. His goa

发表于:2018-12-07 / 阅读(167) / 评论(0) 分类 VOA2003(上)-科技导航

I am speaking not as a Briton, not as a European, not as a member of a western democracy, but as a human being, a member of the species Man, whose continued existence is in doubt. The world is full of conflicts: Jews and Arabs; Indians and Pakistanis

发表于:2018-12-12 / 阅读(133) / 评论(0) 分类 英语演讲

Bacteria Discovered To Recharge Cell Phone A microbe called Rhodoferax Ferrireducens,found in the mud at Oyster Bay,Virginia,has been discovered to transfer electrons directly onto an electrode

发表于:2018-12-18 / 阅读(140) / 评论(0) 分类 有声杂志阅读

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(126) / 评论(0) 分类 cnn2009年(十一)月

A: I was wondering if you have my test results in. B: I didn't see anything out of the ordinary, but I want you to log onto our website for a printout of all of the details. A: So, basically, I am OK? B: If there were any major problems, I would alwa

发表于:2018-12-26 / 阅读(125) / 评论(0) 分类 健康-Health

Time for M.I.T.s Clean Energy Prize. The annual competition gives teams of university students a chance to compete for $200,000 to kick-start their new clean energy business. One finalist designed a compression technology for natural gas wells that w

发表于:2019-01-02 / 阅读(354) / 评论(0) 分类 60秒科学

This is Scientific Americans 60-Second Science. I am Cynthia Graber. This will just take a minute. Solar panels typically convert sunlight into electricity or heat. But photosynthetic vegetation converts sunlight into chemical energy. Now M.I.T.s Dan

发表于:2019-01-04 / 阅读(159) / 评论(0) 分类 Scientific American(八)月

A: Hello, could you tell me my test results? B: Your results are posted on the website. Just put in your password and you can see the exact numbers. A: Are you saying that all my results were normal? B: We always contact you by phone to come in if th

发表于:2019-01-15 / 阅读(179) / 评论(0) 分类 英语情景对话-健康

NEW YORK Plug in your car, then unplug, and drive away. More and more consumers are doing just that. At the 2014 New York Auto Show many automakers unveiled electric or hybrid vehicle to address the growing global appetite for environment-friendly ca

发表于:2019-01-30 / 阅读(141) / 评论(0) 分类 英语新闻

SEOUL/WASHINGTONThe U.N. Security Council said Wednesday that it was working to craft new sanctions against North Korea after its latest nuclear test, while the United States and other world powers voiced skepticism about Pyongyang's claim that the u

发表于:2019-02-04 / 阅读(94) / 评论(0) 分类 英语新闻

Questions 12-20 The elements other than hydrogen and helium exist In such small quantities that it is accurate to say that the universe somewhat more than 25 percent helium by weight and somewhat less than 25 percent hydrogen. Astronomers have measur

发表于:2019-02-05 / 阅读(167) / 评论(0) 分类 托福英语

Are you a normal person? 你是正常人吗? During a visit to the mental asylum, a visitor asked the director ..., What is the criterion that defines a patient to be institutionalized? Well... said the director, we fill up a bathtub, and we offe

发表于:2019-02-06 / 阅读(153) / 评论(0) 分类 趣味英语

PREFIX 1.a-:of;on;intensive;negative,not,without;ad-;ab-. 2.ab-:away from,off. 3. ad-:to;at;for. 4. aer(o)- :relating to air . 5.al-:all. 6.ambi-:on both sides,around. 7.amphi-:on both sides,around. 8.an-:negative,not,without. 9.ana-:upon,up,on. 10.a

发表于:2019-02-06 / 阅读(178) / 评论(0) 分类 雅思英语

December 30, 1954 I am speaking not as a Briton, not as a European, not as a member of a western democracy, but as a human being, a member of the species Man, whose continued existence is in doubt. The world is full of conflicts: Jews and Arabs; Indi

发表于:2019-02-09 / 阅读(179) / 评论(0) 分类 英语美文

Are you a normal person? 你是正常人吗? During a visit to the mental asylum, a visitor asked the director ..., What is the criterion that defines a patient to be institutionalized? Well... said the director, we fill up a bathtub, and we offe

发表于:2019-02-15 / 阅读(119) / 评论(0) 分类 英语笑话(MP3+文本)

9月16日是墨西哥馆日,墨西哥馆五颜六色的风筝森林吸引了不少人的眼球,你知道小小的风筝里有什么大学问吗?其实风筝也有很多种分类哦,一起来看看吧。 说到kite这个单词,这也许是我们

发表于:2019-02-18 / 阅读(194) / 评论(0) 分类 英语口语

North Korea conducted a 'successful' hydrogen bomb test, Pyongyang has confirmed. The thermonuclear weapon triggered a massive 5.1 magnitude earthquake when it exploded at 10am local time on Wednesday. 平壤方面已经证实,朝鲜成功的进行了

发表于:2019-02-18 / 阅读(114) / 评论(0) 分类 英语新闻
学英语单词
abstract integral
antipaedophile
apertura tympanica canaliculi
array position switch
aurantium G
autobitury
azelscope
ball thrombus
base population
Bateman's herpes
Bezymyanka
bias sampling technique
bisphenol a type epoxy resin stearate
blue-blood
BS balance sheet
bubble flow-steering switch
capital of North Dakota
carby
cleaning screen
clip joints
coating protection
crystal cut
deorphanized
Depotestogen
depressing
Digital Evidence
diouris
disused
drop crotching
dynamic load test
electronic universal shaving machine
errhina
ferrando
flash point yield curve
former plate
foulk
fritted sand
functional position
gayfryd
global settlement
grammarchecker
great barracudas
H-class insulation
halawa b.
handly page wing slot
horn-like process
HWOST
hypergeometry
hyperkalemic acidosis
Ilex micrococca
image control
intermediate cable terminal box
Kadiapattanam
katells
kettrin
kineticss
litfest
littlestone
lobed fruit
low parapet
medium hardening
menobranchs
minimum daily requirement
monochromatie objective
neck-length
optical sound recording
pentanucleotide
phonon density
pinacol rearrangement
pleural sinus
plowing layer
pneumatic filter
polyclituss
Power Rise
projected mine
prompt industrial scrap
rahmanis
reindeers
Remicade
renierite
RU-486
ruairis
Rumex microcarpus
security compliance checklist
shallow-draft
sludge thickening
SN (saturation noise)
stand-alone software
star-cluster
sternocleidomastoid region
stoecker
superstimulates
swash-work
Thomas County
titratability
total water solubles
turn over in one's mind
unimpugnable
upload
views
water-softeners
work to