In this article the scientific research background of the problem a in the CUMCM - 2 0 0 0 as well as its intention and conception are simply stated.

本文简述2 0 0 0年全国大学生数学建模竞赛A题的科学研究背景，以及题目的立意和设计。

CUMCM plays a more and more important part in promoting universities teaching quality, advancing teachers teaching skills and research abilities, and improving students comprehensive quality.

全国大学生数学建模竞赛在促进学校教学质量的提高，提升教师教学业务水平，提高学生综合素质等方面发挥着日益重要的作用。