病毒;泸过性病毒

[00:03.16]Computer viruses are electronic programs that destroy information on a computer or cause the computer to stop working. [00:13.37]Computer experts say the I Love You virus is one of the most dangerous they have ever seen. [00:21.29]It began

发表于:2018-12-03 / 阅读(131) / 评论(0) 分类 美国英语听力80篇

From VOA Learning English, this is the Health Lifestyle report. In 2016, three viruses made news, and they present difficult problems for health officials in the New Year. One virus threatens babies in many parts of the world. Another has reappeared

发表于:2018-12-07 / 阅读(122) / 评论(0) 分类 2017年VOA慢速英语(一)月

High-Tech Images Show How Viruses Infect Cells At the University of Texas Medical School at Houston, Jun Liu uses a powerful electron microscope to examine E. coli bacteria and the tiny T-7 virus that infects them. Liu says until now, scientists coul

发表于:2018-12-16 / 阅读(116) / 评论(0) 分类 VOA标准英语2013年(一月)

This is Scientific American's 60-Second Science. I'm Karen Hopkin. This will just take a minute. Weve all gotten e-mails warning us about nasty computer viruses. Maybe you even have antivirus software installed on your machine. Well, now scientists s

发表于:2018-12-24 / 阅读(149) / 评论(0) 分类 Scientific American(一)月

You Are the Weakest Link, Goodbye Do you remember the good old days? Innocent times spent sharing documents and executable files without a care in the world. Okay, every month or so you might encounte

发表于:2018-12-29 / 阅读(129) / 评论(0) 分类 大学体验英语综合教程

With swine flu the big infectious disease story, you dont hear much about bird flu these days. And you may not have to look past your own nose for the reason. Because a new study finds that bird flu viruses may have trouble getting a good foothold i

发表于:2019-01-02 / 阅读(161) / 评论(0) 分类 60秒科学

Broadcast: Feb 4, 2003 By Mario Ritter VOICE ONE: This is Sarah Long. VOICE TWO: And this is Doug Johnson with SCIENCE IN THE NEWS, a VOA Special English program about recent developments in science.

发表于:2019-01-02 / 阅读(190) / 评论(0) 分类 VOA2003(上)-健康资讯

Astronomers say they have some intriguing new clues about one of the biggest mysteries of the universe. More than 20 years ago, scientists discovered that most of the matter in the universe is not made up of ordinary atoms, it is something invisible

发表于:2019-01-08 / 阅读(220) / 评论(0) 分类 2006年NPR美国国家公共电台

This is the VOA Special English Health Report. Evidence is increasing that common influenza viruses are becoming resistant to the main drug used to treat them. The drug is oseltamivir, also known as Tamiflu. The most common seasonal flu virus found i

发表于:2019-01-08 / 阅读(113) / 评论(0) 分类 2010年慢速英语(三)月

By Pat Harris Washington 12 April 2006 Watch Fat Virus report Obesity is a growing problem around the world. In the United States, for example, almost one-third of the adult population is overweight.

发表于:2019-01-09 / 阅读(169) / 评论(0) 分类 2006年VOA标准英语(四月)

VOICE ONE: This is SCIENCE IN THE NEWS in VOA Special English. I'm Steve Ember. VOICE TWO: And I'm Shirley Griffith. This week, we will tell about six diseases of the liver. The six diseases come from six different viruses. Doctors have one name for

发表于:2019-01-11 / 阅读(168) / 评论(0) 分类 VOA慢速英语2008年(九)月

DAVID GREENE, HOST: On the island of Borneo in Malaysia, there is a cave that tourists from all over the world love to come to visit. It is called Gomantong. But this cave, it turns out, has a secret. It could have all the elements needed to start a

发表于:2019-01-16 / 阅读(150) / 评论(0) 分类 2017年NPR美国国家公共电台2月

STEVE INSKEEP, HOST: The Pentagon is funding some new research on insects and plant viruses. It says the goal is to protect agricultural crops. Some critics say it looks more like an attempt to make biological weapons. Here's NPR's Dan Charles. DAN C

发表于:2019-01-17 / 阅读(174) / 评论(0) 分类 2018年NPR美国国家公共电台11月

By Pat Harris Washington, DC 09 May 2006 watch Virus report Marburg Ebola Virus The Marburg and Ebola viruses have caused fatal outbreaks in Africa for the past four years. A recent study shows a vacc

发表于:2019-01-30 / 阅读(217) / 评论(0) 分类 2006年VOA标准英语(五月)

About a month ago Sharon Gilbert was hit with a runny nose, sore throat and a cough. The whole snotty works. 大约在一个月前,莎伦吉尔伯特(Sharon Gilbert)出现了流涕、咽喉疼痛、咳嗽等一系列令人烦恼的症状。 A few w

发表于:2019-02-01 / 阅读(126) / 评论(0) 分类 阅读空间

Science and technology 科学技术 Marine biology 海洋生物 Flea market 跳蚤市场 A newly discovered virus may be the most abundant organism on the planet 一种新发现的病毒可能是地球上最丰富的物种。 WHAT is the commonest li

发表于:2019-02-04 / 阅读(169) / 评论(0) 分类 经济学人科技系列

This is Computer Viruses and Threats explained by Common Craft 本期介绍电脑病毒及预防。 You've probably been sick before. It's not fun.In many cases, like the flu, you're sick because of a virustiny germs ready to multiply and spread from

发表于:2019-02-05 / 阅读(179) / 评论(0) 分类 英语万花筒

By Lisa Schlein Geneva 06 August 2007 The World Health Organization says all countries, with the exception of Indonesia, are sharing their avian influenza viruses. WHO says the failure to share virus samples could retard the development of an effecti

发表于:2019-02-05 / 阅读(226) / 评论(0) 分类 2007年VOA标准英语(八月)

From time to time certain strains of virus return. 有几种病毒不时重复出现。 A disagreeable Russian virus known as H1N1 caused severe outbreaks over wide areas in 1933, then again in the 1950s, and yet again in the 1970s. 一种名叫H1N1的

发表于:2019-02-17 / 阅读(162) / 评论(0) 分类 万物简史

When a virus enters your body, your body has to recognize it then produce a protein called an antibody. These antibodies attached to the virus and neutralize it. However, in the time it takes your body to produce enough antibodies, the virus may have

发表于:2019-02-23 / 阅读(118) / 评论(0) 分类 英语时差8,16
学英语单词
.prf
a small bundle of stipules
acanthellas
acoenesthesia
Adcock antenna
alumen
APC-T
Aruwimi
assigned servant
auxochromes
bark chittim
barothermohydrograph
black-white image grabbing card
bucram
business managers
busquilla quadraticauda
cathode resistance
complex phase
contracting band brake
counterfinding
covertapes
critical level
Dalhousie
dead heading
devil's darning needle
distributed collector
dogship
empanelments
epimerons
etamestrol
extraterritorial criminal jurisdiction
flures
former Yugoslav Republic of Macedonia
fourth-centuries
front wheel bearing
G. N.
gilmarite
glyptographers
graduate from college
gravel pavement
handyman's specials
hot pressed gold
improvably
iterative cycle
junk fax
Kedungwuni
Kopa
kordon
lambren
lamina thickness of prepreg
leptosomatic habit
load manifest
loaded bran
make a passing mark
makinoa crispata miyake
mercury naphtholate
mirror reflection echo
morian
mouth to mouth respiration
multishirking
muscle trimming
no-failure life
oil drip pan
overall length of bridge
peach stone
piccant
pimpless
prediction analysis
presizing screen
probability of error
rear axle differential cross
repealableness
residence data memory
resources remote sensing
RSRE
ruthenocuprate
seasoning matter
selentellur
side marker lamp
single cam reversing
skyros
snipefishes
sowing by hand
sportsfield
sprious pulse
stretch of rail
surface cars
take a long, hard look at sth
thermionics
third person
Toonanin
total construction cost of water project
twin launching device
type font
typhoid spots
under achieved
unhonourable
unstarlike
untrashy
voice operating control
washer-drier
Winchellisms