科学美国人60秒 SSS Some Malaria Mosquitoes May Prefer Cows to Us

As you've probably experienced firsthand, some mosquito species have a real taste for warm, human blood. So much so that if you raise them on it the lab, they'll accept no substitute. Fortunately, I don't get major reactions at all. Brad Main is a mo

2007年VOA标准英语-Petraeus, Crocker Reports Fuel Debate

By Al Pessin Pentagon 11 September 2007 The reports by the top U.S. military officer in Iraq and the U.S. ambassador provided fuel to both supporters of the current policy and its opponents. VOA Pentagon Correspondent Al Pessin spoke to some of them

VOA常速英语2007年-Petraeus Has Rare Praise for Syria, Not Sure Ab

By Al Pessin Pentagon 06 December 2007 The top coalition commander in Iraq had some positive things to say Thursday about Syria and other countries and factions that have contributed to instability in Iraq in the past. But U.S. General David Petraeus

2007年VOA标准英语-General Petraeus Says Some Troops May Leave Ira

By Al Pessin Washington 10 September 2007 The American commander in Iraq says the U.S. troop presence there will be reduced by about 2,000 this month, and another 3,500 by the end of the year. But General David Petraeus said he needs most of the 168,

TED演讲:在危机中前行(7)

Neither immigration nor Islamic extremism are impossible to deal with. 移民问题和伊斯兰恐怖主义都不是不可能解决的 Join me now on one last trip, this time to Mexico. 现在跟我来看看最后的这个例子，这一次我们转向

Italy lacks energy for economic revamp

ROME, Dec. 3 (Xinhua) -- Italy lacks the necessary energy(能量,活力) and strength for an economic revival while unemployment and poverty are on the rise, warned a report issued Friday. The 44th edition of the Censis think tank social survey, the

科学美国人60秒 SSS 2016-8-15

In Africa's battle against malaria, two low-tech tacticsinsecticides and bed netshave done a decent job killing off mosquitoes. But it's mainly one species that's been affected. That's a species called Anopheles gambiae, sometimes called the African

【英语语言学习】虚拟现实游戏

RACHEL MARTIN, HOST: Lots of people play video games to escape the real world, but a new type of virtual reality experience does just the opposite. It takes you to the streets of Syria and other conflicts zones gripped by very real violence. But as r

VOA常速英语2008年-Petraeus Condemns Assassination of Sadr Aide

By Meredith Buel Washington 11 April 2008 The top U.S. commander in Iraq, General David Petraeus, has condemned the assassination of a senior aide to radical Shi'ite cleric Moqtada al-Sadr in the Iraqi holy city of Najaf. VOA correspondent Meredith B

VOA常速英语2008年-Petraeus, Crocker Pressed on US Commitment to I

By Dan Robinson Washington 10 April 2008 Lawmakers have pressed the top U.S. military commander in Iraq, General David Petraeus, and U.S. Ambassador Ryan Crocker, about the duration of the U.S. military presence in Iraq, and political progress by the

VOA常速英语2008年-Crocker, Petraeus Report 'Fragile' Progress in

By Al Pessin Washington 09 April 2008 In a second consecutive day of testimony at the U.S. Congress, the top American commander in Iraq and the U.S. ambassador reported progress on key security and political issues, but warned that the progress is fr

VOA常速英语2008年-Petraeus Calls for Minimum 45-Day Pause in US I

By Al Pessin Washington 08 April 2008 The top U.S. military commander in Iraq and the U.S. ambassador told Congress Tuesday that progress in Iraq is fragile and reversible, and called for continuing U.S. commitment, including an open-ended pause in U

VOA常速英语2008年-Petraeus Report Means Large US Troop Presence i

By Al Pessin Pentagon 10 April 2008 In congressional testimony this week, the top U.S. military and civilian officials in Iraq reported what they called real but fragile progress, and urged caution in any discussion of further U.S. troop withdrawals,

VOA标准英语2008年-Petraeus Ends Momentous Command Tour in Iraq

The coalition commander in Iraq, General David Petraeus, has left his post after a momentous year and a half, during which he is widely credited with turning around the fight against a variety of insurgent groups. He will now become the overall comm

Petraeus says capturing bin Laden still priority

WASHINGTON, Aug. 15 (Xinhua) -- Capturing or killing al-Qaida mastermind Osama bin Laden（奥萨马本拉登） is still a priority for the United States, David Petraeus, the general who commands all U.S. forces in Afghanistan, was quoted as saying

AP 2010-11-10

1. Qantas's A380 made an emergency landing in Singapore after an engine blew out about 15 minutes after takeoff. Qantas has grounded its fleet of six A380s. One expert says the superjumbo was designed to fly on two of its four engines and would not h

PBS高端访谈:特朗普出访墨西哥探讨边境墙等问题

HARI SREENIVASAN: We begin with Donald Trump's day trip to Mexico City. It dominated the political headlines and drew even more attention to a high-profile speech he gives tonight on immigration. It was the unlikeliest of summits, Donald Trump, who l

万物简史 第509期:丰富多彩的生命(5)

You might not think there would be that many people in the world prepared to devote lifetimes to the study of something so inescapably low key, 你或许会认为，世界上不会有多少人愿意花毕生的心血来研究那个不起眼儿的东西

经济学人:墨西哥崛起 或成中国未来主要竞争对手(1)

Special Report 特别报道 From darkness, dawn 冲破黑暗，走向黎明 After years of underachievement and rising violence, Mexico is at last beginning to realise its potential, says Tom Wainwright Tom Wainwright说道经过长年停滞和内乱，

经济学人:墨西哥崛起 或成中国未来主要竞争对手(2)

The PRI had hoped to win a majority in the summers elections, but it fell short by 11 in the 500-member Chamber of Deputies and by four in the 128-member Senate. In any case, some of the most important reforms will need changes to the constitution, w