单词：Darwin principle
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Section A Short Conversation [00:04.78]1.It seems to me that there is no need to have a screen on the door in the winter [00:12.04]We usually put it on in summer, don't we? [00:16.90]The only reason for having a screen on the door is [00:21.94]to kee
决胜六级英语听力
Chinese Mainland and Taiwan Should Uphold One-China Principle: State Council Ma Xiaoguang serves as a spokesperson for the State Council Taiwan Affairs Office. At a news conference on Wednesday, Ma said the One-China Principle has clearly defined the
2015CRI中国国际广播电台
February the 12th is Darwin Day. It is to celebrate the anniversary of the birth of Charles Darwin on February 12, 1809 and his life as a scientist. This day also aims to encourage children to get into science. Darwin was one of the worlds greatest s
英语课程学习计划和讲义
the Daffodil principle Several times my daughter had telephoned to say, Mother, you must come to see the daffodils before they are over. I wanted to go, but it was a two-hour drive from Laguna to Lake Arrowhead I will come next Tuesday, I promised a
每天一点英文
He is a man of principle. 他是个有原则的人。 注意当中的principle和principal的读音一样的，但拼法就不同，意思都不同，principal是指校长。 principal是一个人，后面又是pal结尾，pal表示好朋友，下面的
蒋健棠英语实用句子
Grammar Girl here. Today were going to recall that the principal is indeed your pal, but well also see that a principal can be so much more. In this episode well talk about the various ways to use principlethats p-l-eand principalthats p-a-l. (These
英语语法 Grammar Girl
Explorations - Great Thinkers: Charles Darwin and Evolution STEVE EMBER: Welcome to Explorations, in VOA Special English. I'm Steve Ember. This week, Barbara Klein and I tell about one of the most influential thinkers in science history. Charles Darw
2011年VOA慢速英语(十一)月
ROBERT SIEGEL, HOST: Just in time for these hot days of summer, British historian Rosemary Ashton has written the history of one very hot summer in London many years ago, in 1858. That year, the talk of the town was all about marital mores and public
2017年NPR美国国家公共电台7月
Pareto's Principle - The 80-20 Rule How the 80/20 rule can help you be more effective. In 1906, Italian economist Vilfredo Pareto created a mathematical formula to describe the unequal distribution of
实用英语
Darwin in Battle of Wits against Unarmed Man Antievolutionist Ray Comfort will be distributing copies of the Origin of Species with a new introduction that misrepresents, misunderstands and distorts Darwin's ideas and legacy. Steve Mirsky comments No
60秒科学
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名人认知系列 Who Was