盐核

[00:00.00]在线英语听力室( www.tingroom.com )友情制作 [00:03.81]1999 Passage4 [00:07.51]When a Scottish research team startled the world [00:10.54]by revealing 3 months ago [00:12.61]that it had cloned an adult sheep, [00:14.94]President Clinton move

发表于:2018-12-01 / 阅读(396) / 评论(0) 分类 历年考研英语阅读理解

I'm sure that, throughout the hundred-thousand-odd years of our species' existence, and even before, 我十分确信在人类诞生以来的大概10万多年,甚至比这更长的时间里 our ancestors looked up at the night sky, and wondered what

发表于:2018-12-05 / 阅读(129) / 评论(0) 分类 TED演讲国际问题篇

As they grow bigger and bigger, 随着体积越来越大 they start to spin and throw out a disk of debris 它们开始旋转,甩出的碎屑形成盘状 that will coalesce to form a solar system. 在日后融合形成太阳系 This kind of process

发表于:2018-12-07 / 阅读(185) / 评论(0) 分类 太阳科普

OK, one more thing, if I can even get more bizarre. 另外还有一件事是更难以想象的 Since virtually all the mass of an atom is in the nucleus 既然事实是原子的全部质量集中在原子核, now, there is some amount of mass in th

发表于:2018-12-08 / 阅读(147) / 评论(0) 分类 TED演讲教育篇

A summary of the physical and chemical nature of life must begin, not on the Earth, but in the Sun; in fact, at the Sun's very center. It is here that is to be found the source of the energy that the Sun constantly pours out into space as light and h

发表于:2018-12-12 / 阅读(154) / 评论(0) 分类 英语小短文

Information Overload By Robert S. Boyd Knight Ridder Newspapers. Distributed by Tribune Media Services International. Are you overwhelmed by the amount of information these days? 1 Ever feel overwhelm

发表于:2018-12-19 / 阅读(160) / 评论(0) 分类 彭蒙惠英语

This is Scientific American's 60-Second Science. I'm Steve Mirsky . Got a minute ? Athletes have obviously been tempted to use performance enhancing anabolic steroids. Drug testing may discourage such use. But a new study finds that some of the perfo

发表于:2018-12-24 / 阅读(141) / 评论(0) 分类 Scientific American(九)月

Why are there males and females? Why are there two sexes instead of three, or twelve, or one? On this Moment of Science we'll learn why two is the magic number. Let's start with why there is sex at all. When two organisms reproduce sexually, sperm an

发表于:2018-12-27 / 阅读(129) / 评论(0) 分类 英语听力广播—Listening

Where once only salt miners traveled, today, tourists track through tunnels hundreds of feet deep into the caverns of Zipaquir mountain in Colombia. Their destination, a Catholic cathedral carved from the mineral deposits of the old mine. More than 1

发表于:2018-12-30 / 阅读(204) / 评论(0) 分类 国家地理2007年

Science and technology. 科技。 Salt-tolerant rice. 耐盐大米。 Nuclear-powered crops. 核动力粮食。 Physics meets biology in a project to breed better strains of rice. 物理学与生物学的碰撞--优质大米培植。 THOSE who turn t

发表于:2018-12-31 / 阅读(151) / 评论(0) 分类 经济学人科技系列

Science and Technolgy. 科技。 Modern alchemy. 现代炼金术。 Turning a line. 进入新的一行。 The race to extend the periodic table continues. 扩展元素周期表的比赛仍在继续。 ONE of the first inklings that chemistry has an u

发表于:2018-12-31 / 阅读(217) / 评论(0) 分类 经济学人科技系列

This is Scientific American's 60-Second Science. I'm Steve Mirsky, got a minute? Neandertals were our closest relatives. And now we know a lot more about them. Because researchers have for the first time sequenced a complete Neandertal genomethat of

发表于:2019-01-08 / 阅读(183) / 评论(0) 分类 Scientific American(八)月

The source of Energy A summary of the physical and chemical nature of life must begin, not on the Earth, but in the Sun; in fact, at the Sun's very center. It is here that is to be found the source of the energy that the Sun constantly pours out into

发表于:2019-01-08 / 阅读(216) / 评论(0) 分类 英语小短文

我们今天要学的习惯用语都包括这样一个关键词汇,salt。 Salt这个词大家都熟,是盐。人们在生活中少不了它,一切活细胞也都需要它,人们意识到盐的重要性已经有好几个世纪了,所以由s

发表于:2019-01-14 / 阅读(192) / 评论(0) 分类 美国习惯用语

Science and Technology Stress and ageing A question of attitude 科技 压力和老化 一个态度问题 The link between chronic stress and a marker of old age is being disentangled 科学家发现了长期压力与一个衰老标志间的联系 TE

发表于:2019-01-26 / 阅读(143) / 评论(0) 分类 经济学人科技系列

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(174) / 评论(0) 分类 托福英语

Particles can come into being and be gone again in as little as 0.000000000000000000000001 second (10-24). Even the most sluggish of unstable particles hang around for no more than 0.0000001 second (10-7). 粒子可以在短达0.000 000 000 000 000 0

发表于:2019-02-17 / 阅读(161) / 评论(0) 分类 万物简史

Meanwhile the tireless Rutherford, now back at Cambridge as J. J. Thomson's successor as head of the Cavendish Laboratory, came up with a model that explained why the nuclei didn't blow up. He saw that they must be offset by some type of neutralizing

发表于:2019-02-17 / 阅读(140) / 评论(0) 分类 万物简史

从柴米油盐说起 中国人用柴米油盐酱醋茶概括了生活所必须的点滴琐事,所以,一说起柴米油盐,说汉语的人头脑中第一印象就是过日子。 其实不只是中国人,全人类又何尝不是如此呢?不同

发表于:2019-02-17 / 阅读(142) / 评论(0) 分类 英文语法词汇

The Source of Energy A summary of the physical and chemical nature of life must begin, not on the Earth, but in the Sun; in fact, at the Sun's very center. It is here that is to be found the source of the energy that the Sun constantly pours out into

发表于:2019-02-25 / 阅读(133) / 评论(0) 分类 双语有声阅读
学英语单词
a bit of fluff
Adiramycin
affective schizophrenia
agraffes
ass-backward
average kilometre of tyre scrap
batch log
beitrage
Bichat's foramina
cindery
circular saw anvil
clean-up time
clip artists
cluster-type dkiamond dressing tool
congestee
connectionmode network service
Corbynite
cytorrhyctes aphtharum
dacorums
dinner wine
diskette directory
dummetts
duodecillionth
Elymus ciliaris
endosporic
extramolecular
extravagantness
fan governor
Fermi Dirac gas
floor-boards
flush rivet
for-instance
furne
general price
general room
genus Metroxylon
goal of native mode
gravlax
Greenwich date
group-shelterwood cutting
gumlac
HFBSOV
Huarmey
ion fractionation
JTAO
Kouamékro
Kuhn-Tucker constraint qualification
kysth-
learning experience
lever de rideau
Lindera villipes
liquid or gas level relay
liquid-dye laser
lowest design navigable water level
Man-aung Kyun
March of Time
maximum total sag
menem
milada
Myxocyprini
nitroniums
packed-pixel
Pankovka
Parincea
pentazane
pentenedicarboxylic acid
perfect restitution
plauditor
pottiers
Protagoras
pseudomonas phaseoli var.fuscans(burkholder)starr.et burkhol-der
queen silk
Rate of Vessel without Cargo Shortage
reaming out
rectilinear generatrix
reduced Compton wavelength
refrigerating system with accumulation of cold
reinsurer
rejuvenated river
Rekkem
rock stress
Roddicks
roget spiral
sawn-off wild-deer antler
shore-protection works
singleblade
splitting(simpson 1944)
standardization/evaluation
submerge-arc welding
super-real
Taxus fuana
transient flow
trichophytic alopecia
underflow indication
veritas odium parit
water-borne material
windstopper
wring-bolt
yan xishan
yongs
younger dryas (yd) event
Zenkovka