[网络] 依桑族人;非洲沙漠中的郭依桑族人;依桑人

Can A Computer Teach Children to Read and Write? The Global Learning XPrize competition is looking at ways in which children can teach themselves reading, writing and mathematics with only a tablet computer. The XPrize Foundation and its supporters a

发表于:2018-12-08 / 阅读(126) / 评论(0) 分类 2017年VOA慢速英语(十)月

我们上一次讲了由penny 也就是分币组成的几个习惯用语。美国人用的硬币除了penny还有好几种。例如,价值比penny高一点儿的有五分和一毛的硬币。它们是: nickel and dime。不论Nickel还是dime都是零

发表于:2019-01-11 / 阅读(94) / 评论(0) 分类 美国习惯用语

Science and Technology 科技 Human evolution 人类进化史 You look familiar 似曾相识 Another piece of humanity's family tree is fitted into place 南方古猿sediba的发现填补了人类家族谱系的关键空白 THE opening scene of Mel B

发表于:2019-01-26 / 阅读(49) / 评论(0) 分类 经济学人科技系列

Human evolution 人类进化史 You look familiar 似曾相识 Another piece of humanitys family tree is fitted into place 南方古猿sediba的发现填补了人类家族谱系的关键空白 Sep 10th 2011 | from the print edition THE opening scene

发表于:2019-02-17 / 阅读(88) / 评论(0) 分类 经济学人综合

Human evolution 人类的进化 You look familiar 你,似曾相识 Another piece of humanitys family tree is fitted into place 确定另一支人类谱系 THE opening scene of Mel Brookss film History of the World: Part One dispenses with human ori

发表于:2019-02-17 / 阅读(85) / 评论(0) 分类 经济学人综合

Science and technology 科学技术 Human evolution 人类的进化 Ask the family 寻根问祖 Human ancestry has just got more complicated 人类祖先之谜变得愈加复杂了 ONE of the oddest things about Homo sapiens is that he is alone. 有关

发表于:2019-02-24 / 阅读(86) / 评论(0) 分类 经济学人科技系列