单词：Prunus alleghaniensis
单词：Prunus alleghaniensis 相关文章
Iran's new president now says his country is ready for serious talks with world powers over the nation's controversial nuclear program. Two days into his job, Hasan Rouhani said his government hoped that talks with the West could begin without wastin
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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
Iran's Rowhani Promises New Era President-elect Hassan Rowhani took to the podium to make clear his victory represents a new era, hinting at a new start with world powers, including the United States. The issue of relations between Iran and America i
VOA标准英语2013年(六月)
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
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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