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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
2016年Scientific American(九)月
By Barry Newhouse Islamabad 04 November 2007 One day after Pakistan's president declared a state of emergency, the country's prime minister says officials have not yet decided when new national elections will be held.Meanwhile, Pakistan is bracing fo
VOA常速英语2007年（十一月）
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
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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
2016年Scientific American(八)月
When President Barack Obama and his French counterpart Nicolas Sarkozy jointly commemorate the 65th anniversary of the allied landing in Normandy, France on June 6 they will turning the page on another war that bitterly divided the two countries - i
VOA标准英语2009年(六月)
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
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