从事水果生意的张某在江苏省宿迁市区租赁了一木制阁楼，作为水果仓库从事水果批发。２０００年１２月２５日，张某为给春节准备充足货源，从山东省购进了大量优质苹果，准备装进阁楼内，请孙某等帮助卸运苹果，苹果的包装为硬纸箱盒，当阁楼楼面放满一层苹果纸箱后，就将纸箱 Zhang, a fruit business, rented a wooden loft in the urban area of ​​Suqian, Jiangsu Province, serving as a fruit warehouse for fruit wholesale. December 25, 2000, Zhang prepare enough for the Spring Festival supply of goods, purchased from Shandong Province, a large number of high-quality apples, ready to be loaded into the loft, so help Sun and other unloading the apple, apple packaging carton box, when Attic floor covered with a layer of apple carton, the carton