标签：Viruses 相关文章
A professor of public health with Peking University is holding his ground on downplaying the dangers of plasticizers and melamine at a liquor brand conference, but wants to apologize for making the comments. Professor Li Keji, sparked public anger af
2013年NPR美国国家公共电台1月
Is Ebola airborne? 埃博拉可以通过空气传播吗? The answer is no, its not. But today, I want to take just a couple of minutes and show you why not. I think youre going to find this really interesting. 答案是否定的。但是今天，我想
CNN美国有线新闻2018年6月
AS IT IS 2014-02-20 Mosquitoes and Bats May Carry Disease 蚊子和蝙蝠可能携带疾病 Hello and welcome to another program designed to help you learn and improve your American English. Im Jim Tedder in Washington. Today we are concerned with yo
2014年VOA慢速英语(二)月
Sneezing, coughing, and sniffing. Welcome to winter and the common cold virus, a cure for which has eluded for years. But now a major breakthrough by scientists in Cambridge University brings that cure a step closer, as they've discovered a new way t
万花筒2010年
You've probably been sick before. It's not fun. In many cases, like the flu, you're sick because of a virus. Tiny germs ready to multiply and spread from person to person, via handshakes or sneezes. Computer viruses are no different. Instead of germs
英语解说豆知识2011年
VOICE ONE: This is the VOA Special English program SCIENCE IN THE NEWS. I'm Steve Ember. VOICE TWO: And I'm Doug Johnson. This week, we will tell about a drug treatment for stroke victims. We also will tell about a possible explanation for the myste
VOA慢速英语2009年（九）月
Pesticide Additive Could Be One Culprit in Bee Deaths 农药添加剂是蜜蜂死亡的一大诱因 Springtime is flower season. And that includes some 90 million almond trees in California. It's the largest pollination event in the U.S.and beekeeper
2017年Scientific American(二)月
Could you come and help me mend the computer, Neel? What's wrong with it? I can't log on the internet again. Let me see. Did you change anything on your computer? No, never. What kind of anti-virus software do you use? I don't have this kind of softw
英语口语900句
(On Mon)days, the business report focuses on technology. Microsoft is working on the newest version of its Windows operating system. It's called Windows Vista. And although it will not be out for another year and a half, New York Times Technology col
2005年NPR美国国家公共电台
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.
2006年VOA标准英语（四月）
09年12月六级作文预测及范文（13） Directions: For this part, you are allowed 30 minutes to write a composition on the topic Cyber Crimes. You should write at least 150 words, and base yourcomposition on the outline (given in Chinese) below: 1)随着互
四六级写作指导
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
VOA慢速英语2009年（三）月
This is the VOA Special English Agriculture Report. A farmer in his maize field near Arusha, Tanzania The maize streak virus causes one of the most destructive crop diseases in Africa. Not only is it economically damaging, it can also threaten food
VOA慢速英语2008年（九）月
This is the VOA Special English Agriculture Report. Colony collapse disorder first struck honey bees in the United States in late two thousand six. Over the next two years, beekeepers lost more than one-third of their honey bees. Scientists in the U
VOA慢速英语2009年（九）月
By Deborah Block Washington, DC 24 January 2006 watch Bird Flu Database report A computer database in the United States is helping researchers find a human vaccine for the bird flu virus -- a disease
2006年VOA标准英语（一月）
台湾籍旅美老师今天交给我们的句子是： President Obama has unveiled a number of new proposals this week to crack down on hackers, and he plans to address this in The State of the Union speech on Tuesday. 总统奥巴马提出许多新政
留美老师带你每日说英文
Is Ebola airborne? 埃博拉可以通过空气传播吗? The answer is no, its not. But today, I want to take just a couple of minutes and show you why not. I think youre going to find this really interesting. 答案是否定的。但是今天，我想
CNN美国有线新闻2018年5月
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
2007年VOA标准英语（八月）
DNA Technology Helps Famers Identify Crop Diseases It is often difficult for farmers to identify diseases quickly enough to protect their crops and those on neighboring farms. Now, some farmers are using a simple device directly in the field to find
2019年VOA慢速英语(一)月
Computers are great tools, but they can also be mystifying. Sometimes a program will just stop working correctly for no apparent reason. It could just be a random glitch that can be solved by restarting the machine. But sometimes the solution is not
英语时差8，16