IntroductionChina has an over five thousand years long history of human civilization and a three thousand years history of translation. It was during the Han dynasty (206 BC - 220 BC) that translat...

• 在初三代数的函数及其图象中，蕴含的辩证观点极为丰富。这一章教学内容的最大特点是"变"：变化、变量、运动，正如恩格斯所说的"数学中的转折点是笛卡儿的变数。有了...