异物巨细胞

Fish live in water, but do they drink it? The answer is yes, but how fish drink water depends on where they live. Water gets into a fish's body through osmosis, the process in which water diffuses from a higher to a lower concentration. For example,

发表于:2018-12-03 / 阅读(108) / 评论(0) 分类 初学者听力文摘精选

1. Officials are making preparations for President Gerald Ford's body to lie in state this weekend at the Capitol Rotunda . A funeral service is expected to take place at the National Cathedral after

发表于:2018-12-15 / 阅读(124) / 评论(0) 分类 美联社新闻一分钟2006

Head to the mountains, and if the steep trails don't slow you down, the thin air will. There's less oxygen up thereso strenuous activity can leave you dizzy, out of breathor worse. But even though you're beat, biochemical processes are already busy a

发表于:2018-12-24 / 阅读(79) / 评论(0) 分类 2017年Scientific American(二)月

Fish do drink water, but how they consume it depends on where they live. Water gets into a fishs body through osmosis, the process in which water diffuses from a higher to a lower concentration. 鱼儿确实喝水,但它们怎样喝水却取决于其

发表于:2018-12-28 / 阅读(70) / 评论(0) 分类 初学者听力文摘精选

SCIENCE REPORT — March 27, 2002: New Stem Cell Study By Mario Ritter This is the VOA Special English SCIENCE REPORT. Researchers at an American medical center say special stem cells in normal human

发表于:2019-01-02 / 阅读(156) / 评论(0) 分类 科技之光

From VOA Learning English, this is the Health Lifestyle report. If you have been meaning to add more exercise to your daily routine, you may want to start sooner rather than later. A 2018 study has found that a lifetime of regular exercise and activi

发表于:2019-01-03 / 阅读(125) / 评论(0) 分类 2018年VOA慢速英语(四)月

In Vitro - experiments which are carried out in a laboratory as distinct from in vivo experiments In Vivo -experiments which are carried out in live animals as distinct from in vitro experiments Immun

发表于:2019-01-03 / 阅读(120) / 评论(0) 分类 医务英语

Democratic presidential hopeful Barack Obama cancelled a planned appearance in North Carolina today when his plane had mechanical problems. But speaking in St. Louis where the plane landed, he outlined proposals for revitalizing the sagging US econo

发表于:2019-01-08 / 阅读(86) / 评论(0) 分类 2008年NPR美国国家公共电台七月

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(113) / 评论(0) 分类 科技之光

A: Hello, so how are we feeling today? B: Things are going well for me, Dr. Smith. A: Am I correct in thinking that you are here for your annual physical? B: Yes, I am applying for new health insurance, and I need a physical examination to qualify. A

发表于:2019-01-11 / 阅读(126) / 评论(0) 分类 英语情景对话-健康

Woman Not Diabetic After Cell Transplant 妇女接受干细胞移植手术治愈糖尿病 A diabetic woman no longer needs to take daily medicine after she received a stem cell transplant. The daily insulin injection had helped control the amount of

发表于:2019-01-12 / 阅读(122) / 评论(0) 分类 2015年VOA慢速英语(九)月

Britain's Queen Joins Giant Flotilla for Jubilee Celebration A specially outfitted ship carried the 86-year-old queen and her family along the River Thames at the head of a 1,000-boat parade. Rain and cold kept many people away, but tens of thousands

发表于:2019-01-13 / 阅读(88) / 评论(0) 分类 VOA标准英语2012年(六月)

Giant of US Foreign Policy to Depart Senate A globetrotter who left his mark in Europe, Asia and beyond, Richard Lugar expressed no regrets over his Senate career, which will end in January. I am proud of the solutions we have brought to problems ove

发表于:2019-01-13 / 阅读(83) / 评论(0) 分类 VOA标准英语2012年(五月)

听力部分 Dictation: Please prepare your paper and pen. ______ knows ___ and ____ the ________ _______ _______________________ of ______. But ________ people were __________________. Today _________________________that ________________________ is,

发表于:2019-01-14 / 阅读(81) / 评论(0) 分类 王强口语 第二册

今天我们要学的词是borderline。 Borderline, 边缘地带的。美国总统奥巴马检查身体发现,His cholesterol level is borderline high, 他的胆固醇指标介于偏高的边缘。 The snowboarder tried a move that was borderline

发表于:2019-01-16 / 阅读(92) / 评论(0) 分类 英语每日一词

Cameron was standing in line at Walbrowns. Two cashiers were at the counter. A huge man was standing in front of Cameron. About eight people were standing behind him. One cashier said, Step down, please. The big man went to the counter. A minute late

发表于:2019-01-22 / 阅读(86) / 评论(0) 分类 英文短篇故事(纽约)

SCIENCE IN THE NEWS - Space Shuttle in Orbit but Future Flights Suspended By Caty Weaver,Jerilyn Watson,... Broadcast: Tuesday, August 02, 2005 (MUSIC) VOICE ONE: This is SCIENCE IN THE NEWS, in VOA S

发表于:2019-01-30 / 阅读(131) / 评论(0) 分类 科技之光

By Victoria Cavaliere New York 16 October 2007 An annual stem cell research conference in New York has been bringing together some of the field's top scientists to discuss breakthroughs in stem cell research and what proponents call its long-term app

发表于:2019-01-31 / 阅读(129) / 评论(0) 分类 2007年VOA常速英语(十月)

Science and technology. 科技。 Medical implants. 医用植入设备。 A sweet idea. 一个甜美的想法。 Researchers are trying to harness glucose-the body's own fuel-to power implantable gadgets such as pacemakers. 研究人员正试图利用葡

发表于:2019-02-18 / 阅读(145) / 评论(0) 分类 经济学人综合

Our bodies are amazing. Although things go wrong at times, it's remarkable they work at all when one considers the complexities of their operation. Don and Ya?l present some awards to a few of the outstanding components. [APPLAUSE] D: Good evening, Y

发表于:2019-02-23 / 阅读(84) / 评论(0) 分类 英语时差8,16
学英语单词
a scratch of pen
action of the first impression
agoutas
allocative gain
ancillary proceeding
Antipyritics
be open and aboveboard
Beamsville
belks
Broad.
brookside
bulb neck splicing machine
bullaces
calcareous infarct
capacity per unit length of rubber roll
cape hunting dogs
carbonic acid dipropyl ester
charge reader
charter review
choked bore
chrome-tungsten steels
churchier
citronella grass
close-packed direction
clothestree
compensatory transfer of technology
concentrated acid
concentrating zone thin layer chromatography
concurrent access protection
cordisco
dedignation
dizens
dreikanter
Ena-san
filarial hydrocele
first to invent principle
food economics
Gamay B.
game bag,gamebag
gas field
hanging dam
hold sth. in no account
kerthumps
kystho-
label-switchings
ladder bar code
ladybird
Latin America
lewder
Lewvan
lick sb into shape
Maputo, Prov.de
mcbaine
Medvezh'i, Ostrova
mettler balance
Michelson interference microscope
mid-support
Miral
misinvestments
mobility enhancement
Monschau
mouth music
muliebrity
nanosphere
nonoppressed
oreo cookie
outer solid bowl
p-xenylcarbimide
Pasetocin
peirs
periprostatic
phytocoenology of cultured plants
polymethylene bisdialkylphosphonate
purk
raym
ring binder
ring vortex
rotary cylinder motor
self-esteem needs
set something against something
shipline
soy(bean) milk
spectroscopic binary star
speical purpose telephone
stretch one's wings
strict secrecy
superprojective
sweat
tetrahedral hemihedrism
tier of bags
togues
trade off decision
transmitter on
Tri-n-butyltin
vibration-proof equipment
waiting about
welded texture
whimsy-whamsy
Women Strike for Peace
Work Incentive
yard inventory
yin-yang school