单词：higher density
单词：higher density 相关文章
Smaller Fingers Mean More Sensitive Fingertips A study in the Journal of Neuroscience finds that people with smaller fingers have more sensitive fingertips, probably due to a higher concentration of touch receptors in a given area. Cynthia Graber rep
60秒科学
By Michael Bowman Washington 07 March 2006 view Global Population report By 2050, world population is projected to reach nine billion people. That would constitute a 38 percent jump from today's popul
2006年VOA标准英语（三月）
Education Report - More School May Mean Higher IQ Scores 教育报道 - 上学越多可能意味着智商越高 This is the VOA Special English Education Report. 这里是美国之音慢速英语教育报道。 A study in Norway has found that studen
2012年VOA慢速英语(一)月
Ocean Levels Rising Fast on US Coasts Ocean levels are rising faster and higher on both coasts of the United States than in other parts of the globe, according to two new studies, and California could be especially hard hit. There will be about one m
VOA标准英语2012年(六月)
空客新飞机挑战新高度 Gliders are like engineless aircraft that are towed by powered planes to a certain height. From there, they use natural updrafts, also called mountain waves, to soar to the sky. That is why their wings are so much longe
VOA标准英语2016年(一月)
DAVID GREENE, HOST: Senate Republicans are expected to unveil their version of a tax overhaul today. Like the House bill that's already moving along, the Senate version is being touted as a way to keep more money in Americans' pockets. But for millio
2017年NPR美国国家公共电台11月