// const spanner = new StockSpanner();
园所性质：这个我觉得跟费用是挂钩的，看个人情况，私立我就不提了没那个财力不考虑，简单说一下公办、普惠的区别：
。safew官方版本下载对此有专业解读
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"People thought blockchain applied to the food industry was going to solve all of our problems. It hasn't," notes Elahi.