渐进偏差

数学英语 23 What are the Range and Standard Deviation?

by Jason Marshall Weve now talked about three methods for calculating average values: the mean, median, and mode (affectionately known as the three Ms). So, are we done? Is that everything we could ever want to know about interpreting average values?

发表于:2018-12-07 / 阅读(72) / 评论(0)

数学英语

美国国家公共电台 NPR As More Democrats Embrace 'Progressive' Label, It May Not Mean What It Used To

DAVID GREENE, HOST: Here's a trend. Far more Democrats are describing themselves as progressive these days than they did four years ago. There are strategic reasons candidates are embracing this label. But one major reason, as NPR's Asma Khalid repor

发表于:2018-12-18 / 阅读(44) / 评论(0)

2018年NPR美国国家公共电台10月

Have You Been Using the Perfect Progressive?

Editor's note: See An Introduction to Verb Tenses for the first story in this series. For VOA Learning English, this is Everyday Grammar. This is the last in our four-part series on verb tenses. Make sure you see our episodes on progressive and perfe

发表于:2019-01-02 / 阅读(60) / 评论(0)

2017年VOA慢速英语(一)月

VOA慢速英语2016--The Perfect Progressive Tenses

The Perfect Progressive Tenses Editor's note: See An Introduction to Verb Tenses for the first story in this series. For VOA Learning English, this is Everyday Grammar. This is the last in our four-part series on verb tenses. Make sure you see our ep

发表于:2019-01-12 / 阅读(122) / 评论(0)

2016年VOA慢速英语(一)月

Are You Progressing with Progressive Tenses?

Are You Progressing with Progressive Tenses? Editors note: This is the second of a four-part series on verb tenses. Click here to see part one. For VOA Learning English, this is Everyday Grammar. Today we are going to look at the progressive verb ten

发表于:2019-01-12 / 阅读(73) / 评论(0)

2016年VOA慢速英语(一)月

美国国家公共电台 NPR Appalachian Wrestling's Greatest Villain: 'The Progressive Liberal'

STEVE INSKEEP, HOST: You know, when I was a kid, I watched pro wrestling on TV. The matches often featured a good guy, like Hulk Hogan, against a bad guy, a bad guy like the Iron Sheik, a cartoonish Middle Eastern evil dude. Pro wrestling played off

发表于:2019-02-13 / 阅读(51) / 评论(0)

2017年NPR美国国家公共电台7月

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audito-oculogyric reflex

autem cacklers

autodephosphorylation

autotuner

Ban Dontalat