F细胞;无F(隐性或显性)基因的细菌细胞

News Spotlight POLITICS In a 1)rambling hour-long radio interview, Russian presidential candidate Ivan Rybkin suggested on Wednesday that for at least part of his five-day absence in Ukraine, he was h

发表于:2018-11-28 / 阅读(276) / 评论(0) 分类 疯狂英语2004年

[00:06.09]Simon like exciting films,but Debbie prefers nature films. [00:14.52]One day, she said,'Do you want to watch this video,Simon? [00:21.16]It's about strange living things.they can be very or huge! [00:29.31]Some have lots of bodyguards to pr

发表于:2018-11-30 / 阅读(288) / 评论(0) 分类 高中英语牛津版高一

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(301) / 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(123) / 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(140) / 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(162) / 评论(0) 分类 2017年Scientific American(一)月

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(151) / 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(173) / 评论(0) 分类 英语小短文

[00:03.08]Unit 21 Human Biology Lesson 2 Brain Power [00:09.67]Exercise 2 Listen to a science lesson. [00:13.42]Use the strategies to complete the gaps [00:15.74]in this summary. [00:22.96]Right, the topic of today's lesson [00:25.59]is the brain. [0

发表于:2019-01-10 / 阅读(346) / 评论(0) 分类 北师大版高中英语模块7(选修)

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(244) / 评论(0) 分类 2006年VOA标准英语(八月)

By Carol Pearson Washington 27 March 2007 watch Heart Stem Cell report It is being hailed as a major medical breakthrough: cardiologists are using adult stem cells, not the controversial embryonic stem cells, to rejuvenate the hearts of patients who

发表于:2019-01-11 / 阅读(172) / 评论(0) 分类 2007年VOA标准英语(三月)

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(192) / 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(150) / 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(150) / 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(167) / 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(192) / 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(203) / 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(137) / 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(126) / 评论(0) 分类 VOA常速英语2007年(十一月)

It's 365 days, 12 paychecks and one birthday. 一年有365天,发12次薪水,过一次生日。 But did you know in this time your body will produce enough urine to fill two bathtubs? 但你知道这段时间你的身体会产生足够的尿液来填

发表于:2019-02-01 / 阅读(164) / 评论(0) 分类 阅读空间
学英语单词
acetphenetidide
Ajuga campylanthoides
Aromadendron
auxiliary boat
aversities
Bacterium ceylonense
ban-the-bombers
beginning of autumn?
belen
biopark
bonding
brassidates
breathing intensity
Buddinge
cahills
Canadian International Development Agency
carpenter moth
cathodic corrosion
Cervus elaphus
chord member of truss
closed frame
complementary transistors
core switch circuit
crown bar foot
derosier
desorption of pesticide
diallelic (atwood 1944)
distance bound
dominicide
egg-cups
equal angle bar
equal diffusion theory
extra-storm surge emergency warning
fast-cut
gastro-omental
gibbs helmholtz equations
goldeyes
GPRS mobility management
headpool
hurriyet
industrial circulating fund
intersymbol error
involucrum alarum
jettison system
kaolin(e)
key stroke verification
labor process
lateral excursion
lhasas
long term prediction
lyric theater
Mandioli, Pulau
manusculpt
Martinborough
materialled
Mazarete
medium heritability
meltableness
non-ionic catalysis
nonenrolled
notochordoma
number to position to voltage converter
nustles
oil heating unit
oligoclonicity
overcrowded
oxygeniferous
paper feeds
paraffinic hydrocarbon
pedroncelli
Pelletier, Pierre Joseph
Ping River
postiling
potential difference of total field
primary jaw crusher
radial deflecting electrode
rechargeability
rigid disc
rudder angle receiver
Rushden
scroll sheet
seismic earth pressure
self invention
SMNV
solenocytes
spindle shield
splitting strength
steam-operated impact hammer
sterilities
supporting stand size
swealed ingot
Sæból
tarpit
theriodonts
total correlation coefficient
TTVM
turn off thyristor
twunt
Unified Threat Management
vacuum-tube oscillator
valid signature
variable frequency speed control