内胚层上皮

45.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 Suns very center. It is here that is to be found the source of the energy that the Sun constantly pours out i

发表于:2018-11-28 / 阅读(430) / 评论(0) 分类 新概念优美背诵短文50篇

By Sonja Pace London 30 April 2007 Five British men have been sentenced to life in prison for their involvement in an al-Qaida inspired plot to carry out bomb attacks across Britain. VOA's Sonja Pace reports from London on the outcome of the trial th

发表于:2018-12-08 / 阅读(181) / 评论(0) 分类 2007年VOA标准英语(四月)

CRA-JAH! CRA-AWK-NEF,! Teddy croaked. Teddy was speaking Raven now, but Jack understood him perfectly. Teddyhad said, So+qV, Jackand Annie! Annie stepped forward. Sh, fluttered to the windowledge and perched with Teddy. GRA-QUORK! shecroaked. That's

发表于:2018-12-10 / 阅读(144) / 评论(0) 分类 汪培珽儿童英文分级书单《神奇树屋》

Epidermal growth factor - a cytokine that stimulates epithelial cell proliferation. Epinephrine - a neurotransmitter substance found at all adrenergic synapses (nor epinephrine or epinephrine). It is

发表于:2019-01-03 / 阅读(197) / 评论(0) 分类 医务英语

Junctional epithelium - the epithelium which seals the base of the gingival sulcus against the tooth. Keratan sulphate - a glycosaminoglycan found in cartilage, with chondroitin sulphate. Keratin - a

发表于:2019-01-03 / 阅读(175) / 评论(0) 分类 医务英语

Quadrate - one of the bones which together with the articular bones and the dentary, made/make up a reptile's jaw. In mammals the quadrate bone is incorporated into the middle ear as the incus. Ramus

发表于:2019-01-03 / 阅读(208) / 评论(0) 分类 医务英语

The simplest way to say it is this: I believe in my mother. My belief began when I was just a kid. I dreamed of becoming a doctor. My mother was a domestic. Through her work, she observed that successful people spent a lot more time reading than they

发表于:2019-01-08 / 阅读(265) / 评论(0) 分类 2005年NPR美国国家公共电台

Pienso En Ti 群星 Compilation [ | 大碟 | MV ] One 第 2 首 环球2003年5月 Vocal:Enrique Iglesias Cuando siento que mi vida se desliza y la soledad me come dia a dia, Pienso en ti... Pienso en ti... Cuando el frio me llena el alma me congela y

发表于:2019-01-10 / 阅读(212) / 评论(0) 分类 英语歌曲收藏之一

(MUSIC) That July was the hottest month ever in West Virginia. Many workers became tired and weak in the heat. John Henry was concerned his friends might lose their jobs. So, he picked up their hammers and began doing their work. One week, he did his

发表于:2019-01-11 / 阅读(153) / 评论(0) 分类 英语杂谈

(MUSIC) Today we tell a traditional American story called a tall tale. A tall tale is a story about a person who is larger than life. The descriptions in the story are exaggerated much greater than in real life. Long ago, the people who settled in un

发表于:2019-01-11 / 阅读(154) / 评论(0) 分类 英语杂谈

AMERICAN MOSAIC - In Domestic Violence Cases, Children Are Often the Forgotten Victims MARIO RITTER: Welcome to AMERICAN MOSAIC in VOA Special English. (MUSIC) Im Mario Ritter. Today we listen to new music from Feist. We also read some of your recent

发表于:2019-01-12 / 阅读(174) / 评论(0) 分类 2011年VOA慢速英语(十)月

By Alisha Ryu Nairobi 14 March 2007 Government officials in Kenya are vehemently denying media reports that a man, believed to be a close associate of one of the three most wanted al-Qaida operatives in east Africa, has been arrested in the coastal

发表于:2019-01-16 / 阅读(252) / 评论(0) 分类 2007年VOA标准英语(三月)

1.Stop Stressing So Much 1.不要总是按压你的皮肤 High levels of stress is as bad for your skin as being out in the sun without sufficient sun protection. Stress not only causes hormonal changes in both men and women, it may also affect your

发表于:2019-01-16 / 阅读(123) / 评论(0) 分类 趣味英语

It seems fewer and fewer of us are happy with our looks. Plastic surgery operations were up a third last year and today saw a major conference in London of the world's top cosmetic surgeons, for more full news Helene Cacace was there. Plastic surger

发表于:2019-01-30 / 阅读(129) / 评论(0) 分类 英伦广角

By Paula Wolfson Honolulu 03 September 2007 President Bush's surprise stop in Iraq marks the third time the president has managed to shroud his travel plans to a war zone in secrecy. As White House Correspondent Paula Wolfson reports, the president's

发表于:2019-02-02 / 阅读(195) / 评论(0) 分类 2007年VOA标准英语(九月)

独立小调:烦恼总是让我烦恼Entroubled Kings Castles You bring me trouble, oh so much trouble, now we're in trouble make me lose my page. Could there be a harder way? A loving couple I've blown your cover, drawn to the camera like a moth t

发表于:2019-02-02 / 阅读(182) / 评论(0) 分类 好听的英文歌曲

By Deborah Tate Capitol Hill 17 May 2006 The U.S. Senate Wednesday continued work on an immigration reform bill, voting to bar illegal immigrants with criminal records from becoming U.S. citizens and

发表于:2019-02-03 / 阅读(247) / 评论(0) 分类 2006年VOA标准英语(五月)

By Peter Fedynsky Washington, DC 17 April 2006 watch Resignation report Donald Rumsfeld (file photo) President Bush has rejected calls from a group of retired generals for the resignation of Defense S

发表于:2019-02-03 / 阅读(209) / 评论(0) 分类 2006年VOA标准英语(四月)

Katia: So, Enam, let's talk about environmental problems of our countries. In Bangladesh, what is an environmental problem? Enam: Actually, we have a lot of environmental problems in Bangladesh but mainly I'd say the soil contamination is quite bad,

发表于:2019-02-05 / 阅读(150) / 评论(0) 分类 原版英语对话1000个

Kenyan Farmers Going Green As scientists and political leaders around the world grapple with the issue of climate change, many farmers are looking at technologies that rely on renewable energy for their operations. Farmers in Kenya are now using two

发表于:2019-02-08 / 阅读(175) / 评论(0) 分类 VOA标准英语2011年(十二月)
学英语单词
afredo
air guitarist
Anutan
at a price of
authigenic element
baliga asakurae
bastardised
beau ideals
beer shits
blow-cock
brown-and-white
bubble memory chip
burlier
carbondioxide application
casimirine
celluar localization
chiasmuses
chromatophore cells
coal bed profile
cold milk clarifier
cottage ham
crystallophysics
cycle duration
digitus manus
draw bar guidance
Eglwyswrw
electronic spark control system
flash vessel
full crown
Gamoep
genus Peripatopsis
ghap
glacial relic flora
glass chemistry
grammatical mistake
grid(plate)
heterodimer
highly dispersed system
hygrol
I.D.
inference of string grammar
instant complete load rejection
Kahrād
liebersons
lifo/fifo quantity
limit to growth
Lockhart R.
long waves
loose tube fiber
magnoliid
make your bread
marine zootomy
maximum lethal oxygen concentration
microcline twinning
multiple-slice-gradient-echo
network traffic analysis
NIMH
nonotological
oil cock
on-line man-machine communication
osaka-based
over synchronous braking
pandrass
passance
pillory
post-experiment
powder compacting
power supply panel
printhead resolution
pronephros
quick marking method
ramoon
reconned
restore commands
rhingia binotata
Rooseveltiana
rounding off dollars
sclerorupture
session laws
signal transfer function
silver bar
St-Clar
St-Lunaire
stannous fluoboric acid
supervisive
Suscapine
Swedish language
T-junction
tachibana
Taungtha
the pipeline
trans-texas
tumed
two-level grid file
ufology
unequal stereoblastula
vabra
vocal muscles
Wheatstone bridge, Wheatstone's bridge
wilgen
wire bonder
woolen sweater