四亿年前的“美人鱼”
- 相关热点:
- 口语词汇
科学60秒:足球运动员的"隐形杀手"
On February 17 former Chicago Bears football player Dave Duerson killed himself with a gun shot to the chest. Doctors later found that Duerson had a condition in common with more than 20 other ...
科学60秒:"偷看"的代价
If you want to guess how many jelly beans are in a jar, you should ask your friends. Then average their answers. Because a group guess is often more accurate than that of any one individual. Just
断弦的小提琴
短文Playing a Violin with Three Strings On Nov.18,1995, Itzhak Perlman, the violinist, came on stage to give a concert. If you have ever been to a Perlman concert, you know that getting ...
黄石公园的老忠实喷泉
短文In Yellowstone National Park you can visit the geyser Old Faithful. It’s a spectacular sight, as each four-minute-long eruption sends boiling water over a hundred and fifty feet high. On ...