dear robert,hello.how are you recently?thanks for your letter,and for caring about our lives.i would like to tell you about that.unluckily,the grobal economic cr**** has had great influence on our liv...
展开全部【1】ximin yuan,hongyan li,changwei hu,peak value recognition method based on artificial neural network and the application in flood forecasting[c],flood defence '2002,volume ii,2002.9:915-921【2】李鸿雁...
1.李卫东,我国收入分配数量控制标准研究,1997年第10期,北京统计 2.comprehensive evaluation and analys** of chinese railway transportation enterpr**es’operations from 1988 to 1997载《企业经营管理国际会议论文集》(3排3?999,**tp检索 3.城市主导产业选择的基准与方法再分...