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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
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
英语新闻
A reporters team made up of major Chinese media outlets is now on a journey down the Yangtze River from Yunnan Province. Their destination is Shanghai, the mouth of the river. Flowing nearly 64-hundred kilometers, the trip will take 30-days down the
2018CRI中国国际广播电台
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
万物简史
In southwest Chinas Yunnan province, construction of a high-speed railway connecting the capital city of Kunming with Shanghai has just been completed. The high-speed railway is the first for Yunnan. The route is about 380 kilometers and connects the
cctv9英语新闻2016年