多媒体制作课件集合！一百多个生物Flash动画，从教学到欣赏！-multimedia courseware pool! More than 100 biological Flash animation, from teaching to appreciate!

计算机网络技术相关的flash课件，包括CSMACD工作原理，HDLC帧结构等共41个知识点的flash教程(Computer network technology related flash courseware, including CSMACD working principle, HDLC frame structure, a total of 41 knowledge points of the flash tutorial)