这个一篇关于文本分类中特征选择方法及应用的文章，很好的。...

图片，CBA，strong，个性明星，动作迅速-jpg

驱动升压转换他关键原理是电感的倾向抗蚀电流变化通过创建和销毁的磁场。在升压转换器中，输出电压总是比输入电压高。升压功率级的示意图示于图1。（a）当所述开关被关闭时，电流通过产生的磁场流过电感器的顺时针方向和电感器存储一定的能量。电感器的左侧的极性是正的。（b）当所述开关打开时，电流将被减小的阻抗较高。先前产生的磁场会被破坏，保持朝向负载的电流。因此，极性将被反转（意味着电感器的左侧现在将是负的）。其结果是两个源将在串联导致更高的电压，以将电容器通过二极管D充电

C++程序设计的指南-the C Programming Guide

int13技术文档，供对磁盘直接读取编程使用-int13 technical documentation for the right disk read directly using programming

PipeDrop is distributed as 14-day TRIALWARE. You may evaluate this software free of charge for not more than 14 days. At the end of 14 days you must register the software in order to continue using it. Before using this software, please read the disclaimer and license agreement in the file DISCLAIMER.TXT.-PipeDrop is distributed as 14-day TRIALWARE. You may evaluate thissoftware free of charge for not more than 14 days. At the end of14 days you must register the software in order to continue using it.Before using this software, please read the disclaimer and licenseagreement in the file DISCLAIMER.TXT.

详细介绍了vs2003 的快捷键实用方法。-VS2003 detailed practical method of shortcut keys.

信号处理原理-signal processing theory

一个ASP 的BBS 毕业设计论坛，有需要的可以来下载-good word

计算机信息系统说明-computer information systems descriptions

使用uC-OS-II操作系统的短信息电话机-use-OS-II OS phone short message