【案例】2014年4月18日,六师奇台农场职工徐某与同连队职工13人从刘某处赊购农资。徐某赊购了1.7万元的尿素和2.2万元的二胺,向刘某出具了共计3.9万元的欠条,并按照当地交易习惯把所购农资列了清单,双方各执一份,预备对已发货的部分进行对账勾销并做标记。4月21日,刘某将徐某订购的1.7万元的尿素送货上门,并当场收取了相应的货款。徐某称自己所持清单不在身上,先勾 [Case] ​​April 18, 2014, Sixth Qitai farm workers Xu and colleagues with the team of 13 employees from Liu purchase credit agricultural capital. Xu on the purchase of 17,000 yuan of urea and 22,000 yuan of diamine, to Liu issued a total of 39,000 yuan IOUs, and in accordance with the local transaction habits of the purchase of agricultural resources listed in the list, each of the two sides hold a pre-prepared Reconcile and mark the shipped parts. April 21, Liu will Xu ordered 17,000 yuan of urea door-to-door, and the site received the corresponding purchase price. Xu said his list is not in the body, the first hook