单词：Clematis texensis
单词：Clematis texensis 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
By Challiss McDonough Ghazl el-Mahalla, Egypt 27 September 2007 Thousands of workers have taken control of one of Egypt's biggest state-owned textile factories in a continuing protest over pay and work conditions. Tensions are mounting as the strike
2007年VOA标准英语（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
By Jim Malone Washington 22 February 2008 Democratic presidential rivals Barack Obama and Hillary Clinton are focusing their efforts on the large, delegate-rich states of Texas and Ohio over the next several days. Obama and Clinton are headed for wha
VOA常速英语2008年（二月）
DUBAI, Oct. 9 (Xinhua) -- While many fairs in crisis-ridden Middle East struggle to attract sponsors and exhibitors, the Gulf Information and Technology Exhibition, or GITEX, which opened Sunday, has a different challenge: a lack of space due to the
英语新闻
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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