[网络] 原核细胞

Your heart muscle does something truly incredibleit expands and contracts, non-stop, every moment of every day of your entire life. By comparison, if you tried to squeeze and release the muscles in your hand, they would grow fatigued and need to rest

发表于:2018-12-03 / 阅读(106) / 评论(0) 分类 英语时差8,16

Rho Ophiuchi dark cloud is one of the closest star-forming regions to our own solar system. Located near the constellations Scorpius and Ophiuchus, the nebula is about 407 light years away from Earth. The infrared astronomical satellite, now celebra

发表于:2018-12-05 / 阅读(156) / 评论(0) 分类 国家地理2008年

'Three-Person Babies' Debate Goes Beyond Science and Religion 三人创造的人类胚胎辩论超越科学和宗教 Britain has become the first country to permit doctors to use genetic material from three people to create human embryos. The process

发表于:2018-12-16 / 阅读(81) / 评论(0) 分类 2015年VOA慢速英语(三)月

Voice 1 Welcome to Spotlight. Im Katy Blake. Voice 2 And Im Christy VanArragon. Spotlight uses a special English method of broadcasting. It is easier for people to understand - no matter where in the world they live. Voice 1 Small, shiny shells. Roun

发表于:2018-12-19 / 阅读(99) / 评论(0) 分类 环球英语 Spotlight

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(94) / 评论(0) 分类 英语听力广播—Listening

1. protagonist /prəˈtgənɪst/ -- the leading(first) character in a play, novel or story Brutus is the protagonist in William Shakespeare's Julius Caesar and Antony is the antagonist. 布鲁特斯在威廉莎士比亚的《尤利乌斯凯撒》中是

发表于:2018-12-30 / 阅读(100) / 评论(0) 分类 突破英文词汇

If you're confused by Three Parent... you come to the right place. This is my kitchen lab. The eggs here are somewhat larger but the principles are the same and allows me to demonstrate what scientists hope to do with humans. Inside the egg core are

发表于:2019-01-02 / 阅读(83) / 评论(0) 分类 英伦广角

As scientists delve deeper beneath the oceans surface, they find bizarre creatures that have adapted to harsh and extreme environments. Now comes a new onethe discovery of the first multicellular animals that survive and reproduce entirely without ox

发表于:2019-01-02 / 阅读(147) / 评论(0) 分类 60秒科学

Scientists Observe Birth of Huge Galaxy Cluster For the first time ever, astronomers have observed the birth of a galaxy cluster, known as a protocluster. The event, billions of light-years away, could form one of the largest-known structures in toda

发表于:2019-01-03 / 阅读(105) / 评论(0) 分类 2018年VOA慢速英语(五)月

d-Pinoresinoldi-O-b-glucopyranoside 松脂酚双吡喃葡萄糖甙 d-Pinoresinol d-松脂素 Piperitone 胡椒酮 Plantaginin 车前甙 Platycodin A, C, D 桔梗皂甙A,C,D Podophyllotoxin 鬼臼毒

发表于:2019-01-03 / 阅读(169) / 评论(0) 分类 医务英语

By Phil Mercer Sydney 03 December 2007 Kevin Rudd has been sworn in as Australia's new Prime Minister with an agenda of action on climate change and the repeal of unpopular industrial laws. The new government has signed the Kyoto Protocol on climate

发表于:2019-01-25 / 阅读(113) / 评论(0) 分类 VOA常速英语2007年(十二月)

WASHINGTON, April 21 (Xinhua) -- U.S. researchers said Monday that muscle weakness from long-term alcoholism may be due to an inability of mitochondria, the powerhouses of cells, to self- repair. In research conducted with rats, the researchers found

发表于:2019-02-05 / 阅读(168) / 评论(0) 分类 英语新闻

It sounds like something from a science fiction film, but a pill to counter the ageing process could become a reality. 这听起来有点像科幻片的桥段,但可延缓衰老进程的药物有望变为现实。 Scientists in Russia are testing a

发表于:2019-02-05 / 阅读(132) / 评论(0) 分类 阅读空间

British MPs have voted in favour of the creation of babies with DNA from two women and one man, in an historic move. 英国国会议员投票通过一项具有历史性意义的决议,支持用两母一父的DNA培育婴儿。 The UK is now set to

发表于:2019-02-09 / 阅读(101) / 评论(0) 分类 阅读空间

Mitochondria and male lifespan 粒腺体影响男性寿命 Power down 粒腺体阻断 Women outlive men. An evolutionary curiosity may explain this 女性比男性寿命长久。欲知为何,请看进化学分解 Mankiller? 男性健康杀手? WH

发表于:2019-02-16 / 阅读(72) / 评论(0) 分类 经济学人科技系列

In 2001, a team from Tel Aviv University argued that B. permians were almost identical to a strain of modern bacteria, Bacillus marismortui, found in the Dead Sea. 2001年,以色列特拉维夫大学的一个小组认为,二叠纪芽孢杆菌与一

发表于:2019-02-17 / 阅读(130) / 评论(0) 分类 万物简史

Mitochondria manipulate oxygen in a way that liberates energy from foodstuffs. 线粒体支配着氧,释放食物中的能量。 Without this niftily facilitating trick, life on Earth today would be nothing more than a sludge of simple microbes. 没有

发表于:2019-02-17 / 阅读(123) / 评论(0) 分类 万物简史

What's wrong with having three parents? I'm happy with two but maybe it would have been a case of the more the merrier. The role of parents is not only to give us love and guidance, but also to pass on genetic code. A few particular healthy genes wou

发表于:2019-02-21 / 阅读(77) / 评论(0) 分类 英语听力精选进阶版

What makes the sun shine? For a lot of folks, this is the kind of thing that doesn't even require explanation: it just does. But just being a commonplace phenomenon in no way explains it. Something must cause the sun to shine. And, in fact, there is

发表于:2019-02-23 / 阅读(130) / 评论(0) 分类 英语时差8,16

The British actor Alan Rickman has died of cancer at the age of 69. In movies, he won fame for his role as Severus Snape in the Harry Potter series and before that in films such as Truly Madly Deeply, Love Actually, Die Hard, Sense and Sensibility an

发表于:2019-03-04 / 阅读(187) / 评论(0) 分类 中英双语新闻
学英语单词
antignons
Aspidiotus perniciosus
bacilius anthraris
best polynomial approximation
boneless chicken
bosox
bracket budgeting
Bract.
breakfast food
chubdar
constant boiling(-point) mixture
consummately
cross fruitifulness
data dictionary assembler
data set profile
dATP
decent convergence
deconstructing
derrick guyline
digital information transfer system
drofe
electric connective tissue
Esperantists
Eusimulium mooseri
extra high voltage (ehv)
femtowebers
floating address
fluoride waste
Fosbury-flopping
horse-cars
hydraulic relief valve
ihrigising
indomethacins
isozymogram
item sale
Kakesulin
Kassowitz's law
kenyentulus chui
kill the fatted calf
liepajas
liya
mechanical seal with outward leakage
medial palmar space
metzincin
model state
Mountain Brook
mouselet
musculus sphincter ani externus
net terms
nonpower shift
offset circle of cam mechanism
outline draught
own ship's speed
panurgic
parity checking capability
plasticizer molecule
polell
pot insulato
precedaneous
preheat current
prematonin
prescribed by law
prisonerlike
proparasceve
propyl sulfoxide
quantum of products
Ramus intermedius
re-investigation
reeman
remote pick-up
revival phenomenon
rutherford backscattering spectroscopy
safety-deposit box
saprotrophically
Schilling's specific gravity gas apparatus
secretoglobins
self-collected
shines out
simple product
single loop diagram
slender-winged
slide damper
solvent silicone varnish
specific heat data
tetragonal disphenoidal class
Texas rigs
theorem of momentum
theory of human effctiveness
thickness measurement with laser
thrue
tripeptidyl
unmarshalled
unstable exchange markets
van der waerden's test
vcid
Venkatāpuram
vulnerable phase
waveguid taper
wet sludge
wet-strength paper
windbores
woodworking lathe