New Version: Resources of BMF CP80 RV2

This version contains revision on the R script, Model 2 has been re-examined and re-optimized to provide better insights on the moderation effect of USDA funding on the association between methods of obtaining supplies and the feeding modalities of school meals program.本版本针对R脚本（R script）完成了修订；模型2已重新检验并优化，以期更深入地揭示美国农业部（United States Department of Agriculture, USDA）资助在物资获取方式与学校餐食项目供餐模式之间的关联中所发挥的调节效应。