拟线性双曲型组

[00:00.00Chapter 3 Computer Software [00:02.59]第三章 计算机软件 [00:05.17]Dialogue 1 [00:06.78]句型1 [00:08.39]A:I don't understand how to use this new software . [00:10.49]我不懂这软件怎么用。 [00:12.59]B:Didn't you look at the

发表于:2018-12-05 / 阅读(87) / 评论(0) 分类 电脑英语

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) 分类 数学英语

分集介绍:指数,log,对数微分;双曲函数 Exponential.and.log.Logarithmic.differentiation;.hyperbolic.functions

发表于:2019-01-05 / 阅读(335) / 评论(0) 分类 麻省理工学院公开课:单变量微积分

This is Scientific American's 60-Second Science. I'm Steve Mirsky. Got a minute? The 2011 Nobel Prize in chemistry goes to Daniel Schechtman of the TechnionIsrael Institute of Technology in Haifa. Schechtman discovered what are called quasicrystals.

发表于:2019-01-08 / 阅读(72) / 评论(0) 分类 Scientific American(十)月

66 神秘的彗星

发表于:2019-01-30 / 阅读(91) / 评论(0) 分类 科技之光

The Director of the State Council's Hong Kong and Macao Affairs Office, Wang Guangya, says that the central government will always support Hong Kong and Macao, and stick to the One Country, Two Systems principle. I can responsibly say that policy in

发表于:2019-02-25 / 阅读(80) / 评论(0) 分类 cctv9英语新闻2016年