单词：agroecosystem research
单词：agroecosystem research 相关文章
Researchers Find Bright Side to Some Invasive Species Non-native species present threats to natural environments across the world by pushing out native organisms. Their presence can seriously damage ecosystems that provide clean water, food and other
2018年VOA慢速英语(十)月
1.vivisection 活体解剖 2.perform. experiments on animals 在动物身上做试验 3.test animals 用于实验的动物 4.be subjected to experiments 被迫接受试验 5.animal rights 动物权利 6.clinical research 临床研究 7.cruel 残忍的
雅思英语
If you've ever driven up to a mountain pass, you know that the higher you climb, the colder it gets. But on clear, calm days, it can actually (be) colder in the valleys. That's because under high-pressure systems, cold air slides down mountain slopes
Scientific American(四)月
By Mario Ritter Broadcast: October 7, 2003 This is Doug Johnson with the VOA Special English Agriculture Report. Today we finish a two-part series. A listener in Brazil asked about 1)agroecology. This
VOA2003（下）-农业与经济
By Mario Ritter Broadcast: September 30, 2003 This is Steve Ember with the VOA Special English Agriculture Report. This week, we take a suggestion from a listener in Brazil. Agricultural specialist Lu
VOA2003（下）-农业与经济
动物保护类 1.vivisection 活体解剖 2.perform. experiments on animals 在动物身上做试验 3.test animals 用于实验的动物 4.be subjected to experiments 被迫接受试验 5.animal rights 动物权利 6.clinical research 临床研究
雅思英语