[医](汇合)成片的单层细胞,铺满的单层细胞

Cells cannot remain alive outside certain limits of temperature and much narrower limits mark the boundaries of effective functioning. Enzyme systems of mammals and birds are most efficient only withi

发表于:2018-12-01 / 阅读(327) / 评论(0) 分类 新东方背诵文选

Evidence is seen for a possible cause of solid tumors, but many questions remain. Transcript of radio broadcast: 24 June 2008 This is the VOA Special English Health Report. Some experts predict that doctors will someday use stem cells to treat many

发表于:2018-12-15 / 阅读(161) / 评论(0) 分类 VOA慢速英语2008年(六)月

An international team of scientists at a U.S. university is investigating whether 'cooking' cancerous tumors using tiny nanoparticles in a magnetic field might be an effective and useful treatment. Preliminary findings suggest they may be on the righ

发表于:2018-12-16 / 阅读(169) / 评论(0) 分类 VOA标准英语2010年(十一)月

Long ago, before BandAids, or even medicine of any kind, our ancestors evolved to heal cuts themselves. If you got sliced open, the body blocked it up, to prevent blood loss, water loss, infection. But as we gained that powerwe sacrificed something e

发表于:2018-12-24 / 阅读(196) / 评论(0) 分类 2017年Scientific American(一)月

Healing Elbows And Eyeballs A scratch to the surface of your eye heals quite rapidly, often in a matter of minutes. But a surface scratch on your elbow takes days rather than minutes to heal. The reason for these different rates of healing is directl

发表于:2018-12-27 / 阅读(137) / 评论(0) 分类 英语时差8,16

Norm woke up to go to the bathroom. He looked in the bathroom mirror. That bump used to be smaller. It was on the side of his nose. The bump looked puffy. He touched it. It wasn't hard. It didn't hurt. It wasn't a different color. Maybe it was just s

发表于:2019-01-02 / 阅读(170) / 评论(0) 分类 原版英语小短文

英语短文:Cells and Temperature Cells cannot remain alive outside certain limits of temperature and much narrower limits mark the boundaries of effective functioning. Enzyme systems of mammals and birds are most efficient only within a narrow ra

发表于:2019-01-08 / 阅读(221) / 评论(0) 分类 英语小短文

By Efam Dovi Accra 23 August 2006 In Ghana, a high court in the capital Accra Tuesday sentenced five robbers to more than 300 years in prison in what the police say is a clear sign the country is taking violent crime seriously. The spate of armed ro

发表于:2019-01-11 / 阅读(270) / 评论(0) 分类 2006年VOA标准英语(八月)

FAITH LAPIDUS: This is SCIENCE IN THE NEWS in VOA Special English. Im Faith Lapidus. CHRISTOPHER CRUISE: And Im Christopher Cruise. Today, we will tell about possible hope for children suffering from damage to their nervous system. We will also tell

发表于:2019-01-12 / 阅读(213) / 评论(0) 分类 2011年VOA慢速英语(二)月

'Serial Killer' Cells Demolish Leukemia Tumors U.S. researchers say they've been able to modify a patient's immune system T cells, turning them into serial killer cells which zero in on cancer and obliterate it. Its being called a breakthrough in the

发表于:2019-01-14 / 阅读(175) / 评论(0) 分类 VOA标准英语2011年(八月)

Volunteers Help Scientists in Search for Cheap Solar Cells Most of today's solar cells are silicone-based and their manufacture requires sophisticated machinery and expertise. An average home in the United States uses between 20 and 24 kilowatt hours

发表于:2019-01-14 / 阅读(177) / 评论(0) 分类 VOA标准英语2013年(七月)

Australian researchers may have discovered a new way to treat hearing loss in infants. And the secret lies in the NOSE. Our reporter Li Dong has the details. Noses comes in all shapes and sizes, and Australian scientists are now trumpeting a new use

发表于:2019-01-19 / 阅读(195) / 评论(0) 分类 世界各地新闻集锦

Beating Heart Tissue from Stem Cells In a study in the journal Science, researchers explain how they used mouse embryonic stem cells and microchip technology to create heart muscle tissue that actually beats. Cynthia Graber reports One of the goals o

发表于:2019-01-30 / 阅读(221) / 评论(0) 分类 60秒科学

> 39 脂肪中的茎细胞有助于治疗糖尿病 DATE=4-26-01 TITLE=SCIENCE REPORT- Stem Cells in Fat BYLINE=Nancy Steinbach (Start at 59

发表于:2019-01-30 / 阅读(244) / 评论(0) 分类 科技之光

HEALTH REPORT - Fetal Skin Cells May Treat Burns By Caty Weaver Broadcast: Wednesday, September 21, 2005 I'm Shep O'Neal with the VOA Special English Health Report. A method tested in Switzerland may

发表于:2019-01-30 / 阅读(164) / 评论(0) 分类 健康与经济

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(146) / 评论(0) 分类 VOA常速英语2007年(十一月)

与数字有关的英语词根总结 milli-【千分之一】例:milliampere(毫安)=milli(千)+ampere(安培) centi【百分之一】例:centimeter(厘米)=centi(百分之一)+meter(米) deci【十分之一】例:decibe

发表于:2019-02-06 / 阅读(279) / 评论(0) 分类 英语学习方法

sea 海 high seas, open sea 远海 ocean 大洋 inlet 小湾 bay 海湾,湾 gulf 海湾 cove 湾 cape 海角 promontory, headland 海角,岬 cliff 悬崖峭壁 port, harbour 港 (美作:harbor) bay, roadstead 碇泊处 sandbank 沙滩 beach, shore 海滩 strait 海峡 isthmus 地峡 re

发表于:2019-02-08 / 阅读(220) / 评论(0) 分类 英文语法词汇

What Are Calluses And How Are They Formed? 皮肤上的茧是如何形成的? 人体皮肤由于劳动过程长期摩擦造成皮肤表皮细胞坏死而形成的,主要出现于手掌、足掌等部位。长时间的受到磨檫,组织细胞的老

发表于:2019-02-24 / 阅读(169) / 评论(0) 分类 英语听力文摘 English Digest

1. The shortest complete sentence in the English language consists of only one word and that is Go. 英语里由一个单词组成的最短的完整的句子就是GO. 2. The oldest word in the English language is town. 英语里最有年头的一个词

发表于:2019-02-25 / 阅读(234) / 评论(0) 分类 英文语法词汇
学英语单词
air pressure test of boiler
alleviative
Arnebia
back sight angle
bog spruce
booklouses
bottom pouring stopper ladle
branchial nerves
Brittish
bulk dilatation
burning house
canine papilloma virus
canna glauca l.
cape crawford
Cashiira
catarrhous
chromatium okenii
chutspah
cif cleared
completive cargo
cone snail
correspond to
dance to someone's piping
decay period
dienones
dose equivalent
double lip countersink bit
dowlands
earth interior physics
eidetikers
etherialized
exoticnesses
fampools
flexure(monocline)
free-entry
game ports
glass stone
glut with
goniastrea australensis
Heinrich Von Melk
heterogenists
hot-dip tinning stack
individual monitoring
inertial frequency
irrigation period
isologous series
Jesuit drama
Kraszna(Crasna)
Leptaleum filifolium
Leydig-cell tumor
liquidity index
Lysiloma bahamensis
malignin
mepomorph
military trade market
minor suit
miraculist
multifrequeney code signalling
nobilich
nonvolatile semiconductor memory
nucleon instruments
of the same batch
oxbow lake
oxidation-reduction reaction in seawater
oxy-accetylene hose
paper making canvas
Para-dichlorobenzol
parastochastic function
pavlovic
peachies
peak performance
Pilea howelliana
Plai Mat, Lam
postsale
pseudomalaria
Rauber's cell
renolin
ride on a pony
salpingopalatine fold
Secamone lanceolata
self-winder
service games
simulation model library
spectrum analysis
start pump
submerged arc heating
systems design
tap us
thiiranes
three-pronged program
traveling jib crane
trepak
Tupistra fungilliformis
undecisive
undishevelled
unjustified benefit
utility-baseds
versifiable
welsh ponies
wheel barrow race
whitish locus
winding click spring