微积分基本定理

万花筒 2008-07-29&-07-31 数学能力，巾帼不让须眉

Many teachers and parents have said it, it is sort of a thought ingrained in the American psyche that boys are better than girls at mathematics. But is it true? The lack of women mathematicians, engineers and physicists has often been cited as proof

发表于:2018-12-11 / 阅读(43) / 评论(0)

万花筒2008年

NPR 2010-05-11

President Obama's latest nominee to the US Supreme Court, Elena Kagan, says she's grateful for what she called the honor of a lifetime. Mr. Obama says he chose Kagan in part because she understands that law is not an intellectual exercise, a thought

发表于:2019-01-08 / 阅读(76) / 评论(0)

2010年NPR美国国家公共电台5月

探讨全球人口增长

1. According to the speaker, which type of the country in the following has the fastest growing rate of population? 根据演讲者所说，哪一类国家的人口增长速度是最快的？ 2. Under what circumstances would bring the lower or middl

发表于:2019-02-05 / 阅读(44) / 评论(0)

英语万花筒

数学常用短语与从句

数学常用短语与从句 Phrases or clauses frequently used in mathematics 常见的涉及运算的短语或句子 1. Differentiate both sides of the equation and we get... Integrate both sides of the equation and we get... 2. Differentiating both sides of the equatio

发表于:2019-02-07 / 阅读(53) / 评论(0)

英文语法词汇

TED演讲:我们能够避免老化(3)

The geriatrician will intervene late in the day, 老年医学医生会在一个人老化过程的后段， when pathology is becoming evident, 病理越来越明显的时候， and the geriatrician will try and hold back the sands of time, 做治疗来

发表于:2019-02-14 / 阅读(51) / 评论(0)

TED演讲科学篇

PBS高端访谈:同性夫妻也有平等的结婚权

HARI SREENIVASAN: Today's decision on marriage sent waves of reaction across the country, beginning with a large crowd gathered on the Supreme Court steps. Political director Lisa Desjardins takes us there. LISA DESJARDINS: This is the decision from

发表于:2019-02-17 / 阅读(41) / 评论(0)

PBS访谈社会系列

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biochemical interaction

biological effect of radiation

capillary moisture capacity