单词：mean tropical year
单词：mean tropical year 相关文章
The earths tropics teem with species. Theyre far more biologically diverse than the cooler parts of the planet. And scientists have credited higher temperatures and greater amounts of sunlight. But a new study claims that the secret to tropical biodi
Scientific American(七)月
Years Ago, The Year Was 400 Days Long 多年前，一年长达400天 Don: Yaeuml;l, do you notice the days changing length over the course of the year? 东：雅瑶，你有注意到一年中每一天的长度在改变么？ Yaeuml;l: Sure, Don, it s
初学者听力文摘精选
[00:00.00]Unit 30 [00:06.27]Task:who will go on Shipwrecked? [00:10.50]1 Read about a new TV programme [00:14.45]called Shipwrecked! [00:16.90]Shipwrecked!will be a major new TV series [00:19.77]featuring six volinteers(plus any children they [00:23.
北师大版高中英语模块10(选修)
1.Tropical Storm Claudette made landfall on the Florida Panhandle packing fifteen-mile-per-hour winds. It is now a tropical depression. Meanwhile Bill has become the Atlantic season's first hurricane. 2.Milwaukee Mayor Tom Barrett is hospitalized af
美联社新闻一分钟2009年(八)月
This is the VOA Special English Agriculture Report. The United Nations Food and Agriculture Organization says deforestation has decreased over the past ten years. But it still continues at a high rate in many countries. Deforestation is mainly caused
2010年VOA慢速英语(四)月
Spotlight on Zika Helps Neglected Tropical Diseases 关注Zika等热带疾病 The diseases afflict more than a billion people around the world but the media gives little attention to them. They are Neglected Tropical Diseases or NTDs. The World Healt
2016年VOA慢速英语(二)月