单词：vitreitis
玻璃体炎
单词：vitreitis 相关文章
Gravitational Waves Detected, Einstein Is Right 引力波存在证明爱因斯坦是正确的 尽管花费了100年时间，最终科学家还是证明了爱因斯坦的理论是正确的，引力波确实存在 The waves were predicted as part of Ei
发表于:2019-01-12 / 阅读(56) / 评论(0)
2016年VOA慢速英语(二)月
2016年VOA慢速英语(二)月
HARI SREENIVASAN: After two decades in business, Amazon.com is the world's largest Internet retailer, with a stock value that has increased tenfold since 2008. That success is driven by a work force motivated by data-driven managers who stick to prin
发表于:2019-01-27 / 阅读(66) / 评论(0)
PBS访谈商业系列
PBS访谈商业系列