组织培养灭活疫苗

Rob: Hello I'm Rob. Finn: and I'm Finn Rob: and this is 6 Minute English. In today's programme we're talking about slimming - in other words, doing something to lose weight and get thinner. Not a problem for you Finn? Finn: Well, I do have a small ty

发表于:2018-11-29 / 阅读(198) / 评论(0) 分类 六分钟英语

Yal: Hey Don, whatcha reading? Don? Don! Don: Huh? Y: I asked what book you're reading. D: Oh, sorry. I guess I was lost in the story. Y: That's OK. That's what a good story will do, right? In fact, there's a study that explains what's going on the b

发表于:2018-12-07 / 阅读(140) / 评论(0) 分类 大千世界

00:05.00]5 有用的东西 [00:10.00]A What things do Mary and Peter need to lay the tables? [00:16.78]Mary和Peter要摆什么在桌子上? [00:23.56]Mary needs some knives and forks. [00:27.83]Mary要摆一些刀子和叉子。 [00:32.10]She also needs some plates. [00:3

发表于:2018-12-13 / 阅读(168) / 评论(0) 分类 小学英语深圳双语版六年级

When humans have a heart attack, heart muscles die after being cut off from their blood supply. But what if the heart could grow new muscle to replace the dead tissue? Some amphibians can regrow body parts, even entire limbs. But humans and other hig

发表于:2018-12-16 / 阅读(491) / 评论(0) 分类 VOA标准英语2011年(三月)

One of the first studies of the effectiveness of flu vaccine in young children suggests that vaccination should be considered for youngsters before they reach their first birthday. Older adults are considered to have the greatest chance of dying from

发表于:2018-12-16 / 阅读(82) / 评论(0) 分类 VOA标准英语2010年(十一)月

This is the VOA Special English Agriculture Report. A cow with East Coast fever Each year a million cows in Africa die from East Coast fever. The disease is spread by tick bites. Young cows are most at risk; they can die within days. Farmers and her

发表于:2019-01-11 / 阅读(137) / 评论(0) 分类 VOA慢速英语2009年(十一)月

This is the VOA Special English Development Report. Rift Valley fever mainly affects farm animals. But the virus can also infect humans, and South Africa has been experiencing an outbreak. The National Institute for Communicable Diseases reported two

发表于:2019-01-11 / 阅读(126) / 评论(0) 分类 2010年VOA慢速英语(七)月

Efforts to eradicate polio have been frustrated by a variety of factors, and unlike smallpox, the disease has defied long-running and expensive efforts to wipe it out. Now, a new study indicates that one of several polio vaccines can be effective at

发表于:2019-01-13 / 阅读(119) / 评论(0) 分类 VOA标准英语2010年(七)月

New Yellow Fever Vaccine Shows Promise A new vaccine for yellow fever is showing good results in tests as it overcomes one of the biggest problems with the current version. Yellow fever is a deadly disease that occurs in much of South America and sub

发表于:2019-01-14 / 阅读(118) / 评论(0) 分类 VOA标准英语2011年(四月)

Scientists Regrow Tissue Killed During Heart Attack U.S. scientists have done what was once considered science fiction - regrown heart muscle to replace tissue that was killed off in a heart attack. It's the latest advance in the field of regenerativ

发表于:2019-01-14 / 阅读(114) / 评论(0) 分类 VOA标准英语2012年(二月)

Researchers have identified a link between dementia and the brain damage that can occur in older people with high blood pressure and other forms of cardiovascular disease. High blood pressure, high cholesterol, and other conditions that affect blood

发表于:2019-01-14 / 阅读(171) / 评论(0) 分类 VOA标准英语2010年(十一)月

Over 27-hundred volunteers, dubbed the New Generation at the Bird's Nest, are activated among different posts at the IAAF Championships. Xie Junyan heads a group of 72 volunteers. His team is dealing with security. Our volunteers are here as an impor

发表于:2019-01-21 / 阅读(159) / 评论(0) 分类 英语新闻

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(167) / 评论(0) 分类 60秒科学

SCIENCE IN THE NEWS - Polio: How an Ancient Disease Met a Modern Prevention By Jerilyn Watson Broadcast: Tuesday, April 26, 2005 (MUSIC) VOICE ONE: This is SCIENCE IN THE NEWS, in VOA Special English.

发表于:2019-01-30 / 阅读(161) / 评论(0) 分类 科技之光

Breaking up is hard to do. Whether youre doing the dumping or getting dumped, chances are you feel pretty upset. And theres a scientific explanation for this. 分手确实是件难事。无论是你甩了对方,还是对方甩了你,你都可能感

发表于:2019-02-01 / 阅读(124) / 评论(0) 分类 阅读空间

UNITED NATIONS, April 15 (Xinhua) -- A new polio vaccine will be rolled out next week to replace the one which protects against all three strains of wild poliovirus. It marked the beginning of the largest and fastest globally coordinated rollout of a

发表于:2019-02-05 / 阅读(110) / 评论(0) 分类 英语新闻

BOGOTA, May 2 (Xinhua) -- Colombia's second largest guerrilla group blasted a main oil pipeline on Friday, causing oil spill in the northeastern region, local media reported. The rebel National Liberation Army (ELN) attacked the Cano Limon-Covenas pi

发表于:2019-02-08 / 阅读(124) / 评论(0) 分类 英语新闻

巴西宣布漏油应急计划 RIO DE JANEIRO, Oct. 22 (Xinhua) -- The Brazilian government on Tuesday announced a contingency plan to deal with oil spills. The plan will be activated only when corporate action is not enough to contain oil spills or

发表于:2019-02-08 / 阅读(110) / 评论(0) 分类 英语新闻

1. The nation's Emergency Alert System will be activated nationally for the first time this afternoon to test its capability. FEMA chief Craig Fugate warns some video systems may make it look like a real emergency. He says that and other flaws are be

发表于:2019-02-11 / 阅读(185) / 评论(0) 分类 美联社新闻一分钟2011(十一月)

Over the years, I never thought of my father as being very emotional, and he never was, at least not in front of me. Even though he was 68 years old and only five-foot-nine, while I was six feet and 260 pounds, he seemed huge to me. I always saw him

发表于:2019-02-18 / 阅读(140) / 评论(0) 分类 阅读空间
学英语单词
Alvechurch
American merlin
angiosperma
aplowite
armed services editions
basaltic lava
Besters
bibliometry
Bostoners
bragin
broadside array antenna
budder
cagayan sulu i.
calcium fluoride dosimeter
callet
chimicke
Chloraseptine
continuous noise
cotransmitter
deadweight ton
dehydrojuvabione
diarrhea chylosa
digit synchronization
direct current arc welding
disboard
double star winding
draft declaration
duplantis
e-invitation
emberiza hortulanas
ERFPIS
even-toed
evident plasmolysis
free-settling ratio
geim
gem mineralogy
general clerical test
go for naught
Golyamo Krushevo
heart-block
helluous
hygroma colli
hypoleukocytic
IKATP
imperative programming
internal revenues
irascible
It's as broad as it's long
jack-king flip-flop
Kabinda
keramohalite
ketazine
keyboard send receive
laryngeal obstruction
lie of the land
like dishwater
Magnedat
Mainbernheim
Methorphinan
microtube
minor isotopes safeguard technique
monaxonia
Natalia
neqouba
nickel sulfide
odelberg
package printing industry
palaeo-climatology
parentally challenged
PBX firewall
pohlia commutata(schimp)lindb.
Polistes
pothering
premodifier
radio studio
regenerative skid steering
retaining lever catch
rhombocoele
ruby sliver
salvadoran capitals
samuel butlers
satellite data system
secretaries of energy
Septalirhynchia
settlement zone
sheepruns
single engined
spiffing
spinal relay
tauntingly
Thalictrum alpinum
the morning of life
thronely
Torano Castello
transport law
trichocarpocus
tubography
uncataloged
underpant
undulating wire
Urmia
vanaprastham