单词：Utricularia kumaonensis
单词：Utricularia kumaonensis 相关文章
African Slavery and Trafficking 非洲奴隶制度与奴隶交易 Early in March, the government of the West African nation of Niger canceled a ceremony designed to give 7,000 slaves their freedom. Th
VOA2005（上）--文化教育动态
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 Cathy Majtenyi Nairobi 28 May 2006 The government of Burundi and the country's remaining rebel group are to meet Monday for peace talks in Tanzania. The National Liberation Forces rebel group is the last holdout against efforts to end Burundi's c
2006年VOA标准英语（五月）
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