1. The availableness calculating and selecting in Forecast method are shown by the forecasting of the 2010's GDP of Henan province and the corresponding analysis was made. �Ժ���ʡ����������ֵ2010��Ԥ��Ϊ����˵��Ԥ�ⷽ������Ч�ȼ��㼰ѡ������Ӧ�ķ�����
2. Abstract: Genetically modified food (GMF) has evoked much dispute for potential risks after their availableness, which prevented continuable development of genetic engineering techniques. ժҪ��ת����ʳƷ����ʮ�����������ڴ���DZ�ڵķ��գ�������������飬ͬʱ�谭�˻��̼����Ľ�����չ��