<正>在介绍深圳绿化树种选择智能决策支持系统的结构、组成基础上，分析了该系统的功能实现技术。结果表明，绿化行道树树种选择智能决策支持系统（IGDss）是以绿化信息为基础的智能决策支持系统，该系统将现存的各种信息库有机连接，以科学的方式进行树种选择，应用智能代理以及数据挖掘等先进技术建立选取树种的原型。

This study proves that the solution of the hydrodynamic model of submicron semiconductor devices converges to the unique steady solutions exponentially fast as time goes to infinity, and which corrects the mistakes made in reference [1]. We also point out the mistake in reference [1-] under b(x)≡l.