摘要
Ⅰ. ISSUES PUT FORWARDWe have published some reports on a star type LAN which has multiple access capability （LAN<sub>1</sub> for short ）. It has the superiority as follows: （ⅰ）The characteristics of topology structure can be fully shown, i.e. it is quite simple to control the
基金
Part of this research is supported by the National Science Foundation of Gangsu Province.
