题目:将下列方程式展开
(这小孩果然展的很开....)
http://upload.ppstream.com/UploadFil...1113832444.jpgscreen.width*0.7) {this.resized=true; this.width=screen.width*0.7; this.alt='Click here to
题目:找出 X
(果然一下就找出来了....)
http://upload.ppstream.com/UploadFil...1113837964.jpg
极限的概念
(原来就是昏倒...)
http://upload.ppstream.com/UploadFil...1113832126.jpg
约分...
http://upload.ppstream.com/UploadFil...1113838600.jpg
据说数学是锻炼逻辑的...
http://site.bjn2ms.net/UploadFile/20...1823221554.jpg