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Don: Time to go again to the A Moment of Science mailbag. A listener writes: Dear Don Yal, I read somewhere that there's more oil in the Western part of the United States and Canada than in Saudi Arabia. Is that true? Yal: Great question! And the ans

发表于:2018-12-27 / 阅读(98) / 评论(0) 分类 英语时差8,16

By Jessica Berman Washington 03 August 2007 There's a period in the development of toddlers when they seem to learn a new word every day. There are different theories about why young children undergo what experts call a word spurt. But one psychologi

发表于:2019-01-07 / 阅读(177) / 评论(0) 分类 2007年VOA标准英语(八月)

This is Scientific American's 60-Second Science. I'm Cynthia Graber. This will just take a minute. Parents wring their hands over infant sleep patterns. And so when those patterns change, parents tend to panic. But if your baby is sleeping more or na

发表于:2019-01-08 / 阅读(135) / 评论(0) 分类 Scientific American(五)月

How to Deal with Annoying People Imagine a gorgeous summer day. You have the day off and youve just settled into a wonderfully comfy chair on your back deck, coffee nearby, newspaper in hand. You are only two paragraphs into the front page article wh

发表于:2019-01-08 / 阅读(155) / 评论(0) 分类 轻松英语

As five European foreign ministers meet in Copenhagen to prepare for an aggreement to succeed the Kyoto Protocol, scientists in Greenland are warning about accelerated glacier melts. Several years ago, scientists reported that the Helheim Glacier, su

发表于:2019-01-22 / 阅读(145) / 评论(0) 分类 自然百科2009年

Radiation causes damage at the most fundamental level. It mutates the blueprint of life, DNA. Earth's magnetosphere is our crucial defense. It's so fundamental to our evolution and continued existence that the race is on to understand why it's changi

发表于:2019-01-22 / 阅读(125) / 评论(0) 分类 自然百科2011年

It's a digestive process more like those of carnivores. And Sauroposeidon has another trick for growing to mammoth proportions--hollow bones. Its backbone, neck, and ribs have walls just a few milometers thick. Even its limbs are far less dense than

发表于:2019-01-23 / 阅读(126) / 评论(0) 分类 探索与发现2013年

When I was seven years old, I would put my school book bag on both my shoulders and had it sit plumb in the middle of my back, as backpacks were made to do. 在我七岁那年,我会用双肩背书包,让它处在我背部的正中央,感觉双肩

发表于:2019-01-28 / 阅读(190) / 评论(0) 分类 阅读空间

But after all, Lenina was protesting, it's only about four months now since I've been having Henry. 可是毕竟,列宁娜在抗议,我跟亨利一起才四个月左右。 Only four months! I like that. And what's more, Fanny went on, pointing an

发表于:2019-01-29 / 阅读(106) / 评论(0) 分类 美丽新世界

When George Washington University announced last week that it was laying off nearly 50 employees to reduce costs, the universitys president, Steven Knapp, blamed a decline in enrollment in graduate and professional programs. 上周,乔治华盛顿大

发表于:2019-02-07 / 阅读(115) / 评论(0) 分类 阅读空间

The angry green giant is back! Dr. Bruce Banner (Edward Norton) has exiled himself to Portugal after his experiment with gamma radiation went awry, turning him into a superhuman rageaholic whose growth spurts and pigment change signal impending destr

发表于:2019-02-15 / 阅读(99) / 评论(0) 分类 英语时差8,16

1. When I was seven years old, I would put my school book bag on both my shoulders and had it sit plumb in the middle of my back, as backpacks were made to do. 在我七岁那年,我会用双肩背书包,让它处在我背部的正中央,感觉双

发表于:2019-02-23 / 阅读(122) / 评论(0) 分类 英语PK台

Economics Brief 经济学简介 Six Big Ideas: Overcapacity and undercapacity 六大经济学理论:产能过剩和产能不足 Glutology 过剩的学问 The third brief in our series on big economice ideas looks at Say's law 我们有关重大经济

发表于:2019-02-25 / 阅读(179) / 评论(0) 分类 经济学人财经系列
学英语单词
abubble
alloy tin couple test
alternating current voltmeter
aminocaine
anticatalyzer
area functional
as cold as ice
austrich
bazillionaire
bed thickness correction
bedouin dance (iraq)
bracket creep
Brundish
Bryantown
callianassa intermedia
cast doubt upon
Chardin, Pierre Teilhard de
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Clostridium sporogenes
concentrating zone thin layer plate
confidential indicator
coroscope
crect
damp-heat in the urinary bladder
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detect
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dimetate
dip meter
direct rule
DNGE
donnell shell equation
driving-test order
dura mater spinalis
Elobey Chico, I.
empty case
enceliitis
eventlessness
excavation and filling
Fredericia
fuel-rod loading
get down on something
gumbel's inequalities
gyri fornicati uncus
Haskala
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high-cold scrub
inamoured
incompensable
indeffing
infrared detectors
inner oil sump
Jakubowice
linimentum poii
management data unit
marine generator
method of factorial moments
mussaenda frondosa l.
nicknackery
nonexpendable supplies
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operational rule
optiquest
order for reconditioning of defective work
organ grinder
owens machine
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polyglanduar
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raees
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savolainen
schnorkels
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sonic depth recorder
square-toedness
Stefan Zweig
stem vegetable
stone-paved
Sōya-kaikyō(La Perouse Strait)
Tarbagatay
thermophoretic velocity
trouser-leg
uncorked
upstream range
verrucous pyoderma
vibrotechnique
videorecorders
virtual network adapter