中文说明：
(CUMCM)2004年全国数学建模大赛的题目（B题）。现将题目，建模过程及利用“多元线性回归和人工神经网络”解题的源代码上传给大家一起分享。
English Description：
(CUMCM) title of 2004 National Mathematical Modeling Competition (title b). Now upload the source code of the topic, modeling process and problem-solving using "multiple linear regression and artificial neural network" to everyone to share