单词:
单词: 相关文章
[00:00.00]在线英语听力室( www.tingroom.com )友情制作 [00:03.81]1999 Passage4 [00:07.51]When a Scottish research team startled the world [00:10.54]by revealing 3 months ago [00:12.61]that it had cloned an adult sheep, [00:14.94]President Clinton move
Iranian Hopes Dashed at Non-Aligned Summit It was an extremely diverse group that met in Tehran, representing more than half the worlds countries. Among the 120 delegation chiefs were more than two dozen heads of state. But with such a broad-based gr
This is Scientific American's 60-Second Science. I'm Steve Mirsky, got a minute? Neandertals were our closest relatives. And now we know a lot more about them. Because researchers have for the first time sequenced a complete Neandertal genomethat of
Dozens of world leaders met at an Egyptian Red Sea resort for the 15th summit of the 118-nation Non-Aligned Movement. But the 53-year-old group has lost much of its significance since the end of the Cold War. UN Sec. Gen. Ban Ki-moon (R), Egyptian,
Non-Aligned Movement Leaders have wrapped up a summit in Egypt by outlining their visions for the future of the group. More than 50 heads of state outlined met for two days at the Red Sea resort of Sharm el-Sheikh. UN Sec. Gen. Ban Ki-moon (R), Egyp
Questions 12-20 The elements other than hydrogen and helium exist In such small quantities that it is accurate to say that the universe somewhat more than 25 percent helium by weight and somewhat less than 25 percent hydrogen. Astronomers have measur