单词：Ulmus tonkinensis
单词：Ulmus tonkinensis 相关文章
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
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
Chorus: Tell me why baby why baby why baby why you make me cry baby cry baby cry baby cry Well I got a crow I wanna pick with you, just like last time when the feathers flew, your runnin wild kickin up your heels, and leavin me home with a handful of
美国乡村音乐
HARI SREENIVASAN, PBS NEWSHOUR WEEKEND ANCHOR: Today, Turkey again deployed tanks inside Syria to target positions held by Islamic State militants. Twenty Turkish tanks backed by artillery entered northern Syria, about 35 miles from where Turkish for
PBS访谈社会系列