无机亚硝酸盐

Life Grows in the Soil of Time by Thomas Mann What I believe, what I value most, is transitoriness. But is not transitoriness - the perishableness of life - something very sad? No! It is the very soul of existence. It imparts value, dignity, interest

发表于:2018-11-30 / 阅读(137) / 评论(0) 分类 英语励志美文精华

Rice had seen the same thing in Iceland, one of the few places on Earth with similarities to Mars. It too is extremely cold, and most of the water is frozen into glaciers. And also like Mars, buried u

发表于:2018-12-07 / 阅读(125) / 评论(0) 分类 火星生命

22 Good-bye To All That 第二十二章 多灾多难的生命进程 When you consider it from a human perspective, and clearly it would be difficult for us to do otherwise, life is an odd thing. 要是你从人的角度去考虑生命这个问题,显

发表于:2018-12-18 / 阅读(117) / 评论(0) 分类 万物简史

The City of Copenhagen is well on its way to becoming the first carbon neutral capital in the world by 2025. Demonstrating its many sustainable initiatives, the country's Copenhagen Solutions exhibit offers inspiration to policymakers, developers and

发表于:2018-12-19 / 阅读(112) / 评论(0) 分类 英闻天下

本讲为2006年下半年新的教学内容,请对照讲义听声音! Students(researcher/scholar) of Nature are not satisfied with guessing, but they observe, day after day, the changes which tak

发表于:2018-12-30 / 阅读(108) / 评论(0) 分类 自考英语(一)78讲

A case of insanity? Are you insinuating that I am insane? the patient blurted out indignantly. I insist that you release me immediately from this institution! Please rest at ease, my dear Mr.Brown. I have treated innumerable cases such as yours and

发表于:2018-12-30 / 阅读(93) / 评论(0) 分类 胡敏托福词汇记单词

Young Technology Expert Works to Stop Car Thefts Kenya is East Africas largest economy. Its capital Nairobi is growing quickly. But so is the citys crime rate -- the Nairobi Metropolitan Crime Observatory says thieves steal an average of 10 cars each

发表于:2019-01-12 / 阅读(90) / 评论(0) 分类 2014年VOA慢速英语(十一)月

AS IT IS 2014-10-21 Climate Change Could Destroy Farms in Africa 气候变化会使非洲农场受重创 A new study says the speed and severity of climate change could cause major damage to small African farms. These farmers are already struggling t

发表于:2019-01-12 / 阅读(115) / 评论(0) 分类 2014年VOA慢速英语(十)月

Tests Show Levels of Arsenic in US Rice Two hundred different types of rice and rice products tested by both the non-profit research group, Consumer Reports, and the U.S. Food and Drug Administration [FDA], contained varying levels of different forms

发表于:2019-01-13 / 阅读(122) / 评论(0) 分类 VOA标准英语2012年(九月)

Sunscreen comes in many forms, each with its own impacts on your body and the environment. 防晒霜有很多种,每种对你的身体和环境影响各有不同。 With so many options, how do you choose which sunscreen is best for you? 有了这么

发表于:2019-01-17 / 阅读(135) / 评论(0) 分类 TED演讲教育篇

Premier Li Keqiang says China should consider science and technology as a primary productive force. Scientific and technological innovation to a large extent determines the future of China's development strategy. In history, we have missed several te

发表于:2019-01-20 / 阅读(107) / 评论(0) 分类 英语新闻

-Sheldon:Leonard, excellent. I want to show you something. excellent:太好了 Leonard太好了,我想让你看点东西。 -Leonard:Can it wait? I need to talk to you. 能等一会吗,我们得谈谈。 -Sheldon:Just look. I've designed

发表于:2019-01-28 / 阅读(230) / 评论(0) 分类 生活大爆炸第一季

Sprigg submitted a paper to Nature, but it was turned down. 斯普里格给《自然》杂志写了一篇论文,但是没有被采用。 He read it instead at the next annual meeting of the Australian and New Zealand Association for the Advancement

发表于:2019-01-29 / 阅读(106) / 评论(0) 分类 万物简史

Although chemistry had come a long way in the century that separated Newton and Boyle from Scheele and Priestley and Henry Cavendish, it still had a long way to go. Right up to the closing years of the eighteenth century (and in Priestley's case a li

发表于:2019-01-29 / 阅读(102) / 评论(0) 分类 万物简史

In January 2015, a fire in one of Russia's largest university libraries damaged more than 1 million historical documents, an incident which some media described as a cultural Chernobyl. 2015年1月,俄罗斯最大的大学图书馆之一发生了火灾

发表于:2019-02-02 / 阅读(113) / 评论(0) 分类 英语新闻

Despite pledges in the last year to fight pollution, Beijing saw barely any improvement in air quality in 2013. The Beijing Environmental Protection Bureau says the intensity of major air pollutants remained much the same in 2013 as they were in the

发表于:2019-02-05 / 阅读(110) / 评论(0) 分类 CCTV9英语新闻2014年01月

Dropping your smartphone when taking a selfie could soon be less risky, says specialist glass maker Corning. 专业玻璃制造商康宁日前表示,自拍的时候不慎掉落手机可能不再会碎屏了。 Shattered or cracked screens are the n

发表于:2019-02-05 / 阅读(96) / 评论(0) 分类 英语新闻

模仿文本: We're one of the world's biggest spenders when it comes to biscuits, forking out nearly as much on them as we do on fruit and vegetables. But should you for one moment think that things are just as they were, well, think again. Radical

发表于:2019-02-16 / 阅读(74) / 评论(0) 分类 英音模仿秀

Finally, and perhaps a little unexpectedly, readings can be thrown out by seemingly unrelated external factorssuch as the diets of those whose bones are being tested. One recent case involved the long-running debate over whether syphilis originated i

发表于:2019-02-17 / 阅读(97) / 评论(0) 分类 万物简史

Israeli(以色列) researchers say they have developed a powerful bait that effectively attracts and kills malaria-infected mosquitoes but is completely harmless to humans and other animals. The toxic sugar bait developed by scientists at Hebrew Univ

发表于:2019-02-25 / 阅读(157) / 评论(0) 分类 英语新闻
学英语单词
Abasha
acidylate
ackner
activating qi for lowering adverse qi
air quotes
amphisporangiate
apodized
ASPEdit
beleaguerings
benched stack
biquinary
bloggerati
blowing ventilator
Board of Underwriters of New York
boom pipe
break earth
breaking with
bus circuits
calculation of vegetation covering ratio
caldariomycin
chafed yarn
chowderheads
cold-starting device
collision-broadened lines
Commonwealth Bank of Australia
complex-query language
computer music
consensus reality
continuous concrete wall
copious enema
craftmen
crash site
CSAI
cta
de novo sequencing
debris plain
degaussing girdle
Diaboral
doctorly
electric-motor car
electrosensitive recording
engine driven vacuum pump
excess production
exogenous timing
family streptomycetaceaes
foin'
gasaliers
halogen acyl fluoride
horizontal bus
hummelling
Iduviran
iminopeptides
in-line production
indirect treatment
ion selection electrode
Irago-suidō
isceons
keep your eyes
kupfer-nickel
leskea subacuminata
ligg. intercuneiformia plantaria
low minded
marmoreally
microlepia substrigosa tagawa
murth
nonminimally
nonpredictable ADR
one-sided statistical test
paanerocrystalline bomb
pan lang ch?n
Peary Land
performance-monitoring
quantitative isolation
quizzingly
relative frequency scale
rerevised
resettable clock module
roman prints
ronaldson
scientific project
shop car
sigma star
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soft options
steal a march on someone
steamhammer piling machine
sternomastoid breathing
subquarter micron technology
superimplicate
suspension agreement
syndrome differentiation of concurrent visceral manifestation
synedra laevigata
take umbrage
task-involved
taurodontism
topological upper limit
undulating route
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veate
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wicketwork