单词：pitman estimators
Pitman估计量
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by Jason Marshall Sometimes statistics* seems magical. Of course, there isnt really anything magical going onbut the fact that statistical methods can be used to pull useful information out of a hatful of messy data is, at a minimum, remarkable. And,
发表于:2018-12-07 / 阅读(191) / 评论(0)
数学英语
数学英语
SCIENCE IN THE NEWS - A Death in the Family May Cause Real Heart Break SHIRLEY GRIFFITH: This is SCIENCE IN THE NEWS, in VOA Special English. Im SHIRLEY Griffith. MARIO RITTER: And Im Mario Ritter. Today, we tell about an American study of heart atta
发表于:2018-12-16 / 阅读(161) / 评论(0)
2012年VOA慢速英语(二)月
2012年VOA慢速英语(二)月
Geophysicist Probes Ocean's Secrets Today, Pitman is a distinguished professor of geophysics at Columbia University, and the recipient of many of his fields most coveted honors. Even though he is now in his 80s, Pitmans animated manner makes it easy
发表于:2019-01-13 / 阅读(393) / 评论(0)
VOA标准英语2012年(一月)
VOA标准英语2012年(一月)