皮肤色素细胞

Parents of East Asian, East African and Native American descent are not usually surprised when their babies are born with distinctive blueish-gray or blueish-green birthmarks on their backside. Eighty to ninety-five percent of infants from these ethn

发表于:2018-12-03 / 阅读(116) / 评论(0) 分类 英语时差8,16

Faiza Elmasry | Washington, DC 29 March 2010 Cell biologist Elaine Fuchs is known for revolutionizing the study of skin and for her support of women in science. Children, Elaine Fuchs says, have a natural fascination with science. She remembers that

发表于:2018-12-16 / 阅读(142) / 评论(0) 分类 VOA标准英语2010年(三月)

Making Stem Cells From Ordinary Adult Cells Most cells in our bodies are unipotent, that is they stay the same throughout their lives. For example, once a skin cell, always a skin cellthey never start turning into brain cells. The exception is stem c

发表于:2018-12-27 / 阅读(105) / 评论(0) 分类 英语时差8,16

(WA) Human populations near the equator have evolved dark skin over many generations because of exposure to the fierce rays of the Sun. A similar phenomenon has also occurred in other parts of the animal kingdom. The African grass mouse is a good ex

发表于:2018-12-30 / 阅读(136) / 评论(0) 分类 托福听力短文

SCIENCE IN THE NEWS - Acne, Eczema and More: Scratching the Surface on the Rough Life of Skin By Caty Weaver Broadcast: Tuesday, November 29, 2005 (MUSIC) VOICE ONE: I'm Sarah Long with Bob Doughty, a

发表于:2019-01-02 / 阅读(139) / 评论(0) 分类 科技之光

发表于:2019-01-03 / 阅读(177) / 评论(0) 分类 医务英语

skin-deep that really gets under my skin 今天我们要给大家讲的两个习惯用语都是和皮肤,也就是英文里的skin有关。由于皮肤是在外表又很薄,所以美国人有这么一

发表于:2019-01-07 / 阅读(265) / 评论(0) 分类 美国习惯用语

Now, heres something you dont see every day: scientists cure color-blind monkeys. According to a report published online in the journal Nature, researchers have used gene therapy to allow color-blind squirrel monkeys to look at their fruit in a whole

发表于:2019-01-08 / 阅读(179) / 评论(0) 分类 Scientific American(九)月

This is Scientific American's 60-Second Science. I'm Steve Mirsky. Got a minute? One of the dreams of biomedical scientists is to be able to transform adult cells into other kinds of cells. And thus avoid some of the ethical concerns of working with

发表于:2019-01-08 / 阅读(183) / 评论(0) 分类 Scientific American(十一)月

no skin off my nose to save one's skin 我们已经讲过一些和身体各部份有关的习惯用语,如:头,背,眼睛,手臂等。我们也讲过和皮肤有关的俗语。今天我们再给

发表于:2019-01-08 / 阅读(226) / 评论(0) 分类 美国习惯用语

SCIENCE IN THE NEWS - U.S. Scientists Find a Way to Create Embryonic Stem Cells With Adult Skin Cells By Cynthia Kirk, Nancy Steinbach, and Caty Weaver Broadcast: Tuesday, August 30, 2005 (MUSIC) VOIC

发表于:2019-01-11 / 阅读(162) / 评论(0) 分类 科技之光

Broadcast: May 6, 2003 By Caty Weaver VOICE ONE: I'm Sarah Long with Bob Doughty, and this is the VOA Special English program, SCIENCE IN THE NEWS. VOICE TWO: Today, we talk about some disorders of th

发表于:2019-01-11 / 阅读(220) / 评论(0) 分类 VOA2003(上)-健康资讯

VOICE ONE: This is SCIENCE IN THE NEWS in VOA Special English. I'm Barbara Klein. VOICE TWO: And I'm Bob Doughty. Today, we will tell about some disorders of the skin, and ways to treat them. (MUSIC) VOICE ONE: Skin. It is the largest organ of the b

发表于:2019-01-11 / 阅读(176) / 评论(0) 分类 VOA慢速英语2007年(四)月

AS IT IS 2016-10-09 Scientists Create Realistic Model of Dinosaur 科学家制作逼真的恐龙模型 British scientists have created what they believe is the best three-dimensional model of a dinosaur ever built. They say the model is almost the ex

发表于:2019-01-12 / 阅读(242) / 评论(0) 分类 2016年VOA慢速英语(十)月

Skin On Skin-亲密接触 Just a little bit more love 多一点爱 Just a little bit more passion 多一点激情 This is how it should begin 如此开始 Skin on skin 亲密接触 If you leave me now 如果你现在离我而去 Telling me you failed

发表于:2019-01-16 / 阅读(179) / 评论(0) 分类 好听的英文歌曲

By VOA News 20 November 2007 Two separate teams of scientists say they have transformed ordinary human skin cells into ones that look and act like embryonic stem cells. Laboratory teams at universities in the United States and Japan Tuesday announced

发表于:2019-01-31 / 阅读(130) / 评论(0) 分类 VOA常速英语2007年(十一月)

At this rate, scientists will have to come up with a better description for the tomato than mere 'superfood'. While it has long been credited with cutting cholesterol and preventing some cancers, the fruit now appears to have two more healthgiving be

发表于:2019-02-06 / 阅读(152) / 评论(0) 分类 阅读空间

WASHINGTON, Nov. 14 (Xinhua) -- Nearly a fifth of all Americans 12 years or older have hearing loss so severe that it may make communication difficult, according to a new study led by Johns Hopkins University researchers and published Monday in the A

发表于:2019-02-18 / 阅读(161) / 评论(0) 分类 英语新闻

Q: What is the saddest truth about life? 生活中令人沮丧的真相是什么? 获得9.5k好评的答案@Dushyant Bhati Half the world's starving; the other half is trying to lose weight. 世界上有一半的人正在挨饿,另一半的人却在

发表于:2019-02-18 / 阅读(147) / 评论(0) 分类 阅读空间

I didn't know this about you,cause I'm a big,I told you I'm a huge fan of the show backstage,but I'm shocked at how tall you are. 我不知道你的这一点 我在后台跟你说 我很喜欢这部剧 但你居然有这么高 It's unusual.Actually,w

发表于:2019-03-04 / 阅读(216) / 评论(0) 分类 柯南脱口秀
学英语单词
a dead dog
absolute manometer
air activity monitor
air pirates
amnesias
amplitud-modulation broadcast
anacusis
ants climbing a tree
ardnaves
atmokausis
bfw
biasing magnet
Bromodifluoromethane
brucein
capricciosa
cast-off burr
cioran
citrus succosa tanaka
conical equal area projection
cooling pond
copygraphs
Coregonus albula
cricopharyngeal achalasia
deck level
deposit transfer
design parameters
drum contact
eddy current testing method
edge banding
electrothermic type
emergency vehicle
enhearse
epigenotype
erythrogranuloses
erythroxylon
Exclusive Liability of Cargo Transportation Insurance
fabric seal
fatty alcohol suphate
filling conveyer
forward mean voltage drop
fructus corni
geometrizes
get the run of
Goryun
Gutâi, Vârful
heedeth
high pressure cylinder expansion
hob-head
hot-metal ladle
hover craft
iratest
legal eagles
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lower sideband
manual of accounting procedure
mass spectrometers
Medifome
mitten crab
modified tooth profile
multiple loop
multiple transfer automatic presses
N unit
nature red in tooth and claw
nonmedieval
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puccinia smilacis-sieboldii
ramus communicans cum nervo laryngeo inferiore
Ramus marginalis sinister
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spring-cleanings
SSB-SC-AM
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suav-
submarine's cruising state
superfreeze
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terzettos
Theaflavin-3-G
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touch every base
track while scan radar
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video preamplifier
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