单词：congestion costs and tools
单词：congestion costs and tools 相关文章
Intelligent Crows Use Tools What do otters, chimpanzees, and one species of crow have in common? All three are animals. They also use tools. Scientists have long known that a crow native to New Caledonia is able to use tools. The birds use them to re
2016年VOA慢速英语(九)月
Chuck: Just remember that we have a lot to accomplish today, so lets just get what we need and go, okay? Ayaka: Sure, we just need a few tools for our DIY project. The power tools are over there. Chuck: Whoa, were not getting power tools. We just nee
地道美语播客
DEVELOPMENT REPORT -February 11, 2002: Tools For Life By Jill Moss This is the VOA Special English Development Report. Experts say deaths from infectious diseases can be greatly reduced at very little
农业与发展
To do a job right, you need the right tools. Even a chimp knows that. According to a study in the American Journal of Primatology, chimps in the Congo use multiple tools to capture army ants. Youve probably seen footage of chimps using sticks to har
60秒科学
DEVELOPMENT REPORT – July 29, 2002: Tools for Development By Jill Moss (Photo -CARE) This is the VOA Special English Development Report. Building things or making clothes can be difficult in develop
农业与发展
Many cities in the world have introduced a 'congestion（混杂，拥挤，过剩） charge'. But which of these cities does NOT have a congestion charge? a) Stockholm b) Singapore c) Geneva Dhaka traffic Jackie:Hello, this is 6 minute English with bbclearnin
六分钟英语