单词：spot gold
[网络] 现货黄金；现货金；黄金现货的价格
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[00:04.88]Reading [00:07.55]AN INTERVIEW [00:10.19]Pausanias,who was a Greek writer 2,000 years ago, [00:16.56]has come on a magical journey to find out about the present day Olympic Games. [00:22.20]He is now intervwiing Lili,a Chinese girl. [00:27.
高中英语人教版2004
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
Chapter 3 The Land by the Nile 第三章 尼罗河畔的国家 Here - as I promised - History begins. 历史--我答应过你--将从这里开始。 With a when and a where. 以一个什么时候和一个哪里， It is 3,100 BC, that is, 5,100 years
世界小史
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