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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
[00:02.35]第十九单元 新西兰 [00:04.70]Lesson 73 1 Reading comprehension [00:08.08]第七十三课 1 阅读理解 [00:11.47]Read the text fast to find answers to these questions. [00:14.11]快速朗读课文，找出问题的答案。 [00:16.7
高中英语人教版2000年高三
BEIJING, April 23 (Xinhua) -- Chinese President Hu Jintao said here Monday that advancing friendship and cooperation between China and the Democratic People's Republic of Korea (DPRK) will continue to be the guideline of the ruling party and governme
英语新闻
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
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