一次偶然的机会,我发现在奶奶的抽屉里,有许多张长方形的票子,票子顶端印有一些图画,有的画着收割机在农田上收割,有的是运粮车在繁华的大街上运粮……在图案的旁边则标着斤数,背面写着使用规则。这是什么?它们有什么作用呢?我忍不住问奶奶。奶奶告诉我,这叫粮票,用票的时期叫 By chance, I found in my grandmother's drawer many rectangular tickets with some pictures printed on the top of the ticket, some harvesters harvesting them on the farmland, and some of them transporting food in the bustling streets ... ... next to the pattern is marked by the number of pounds, the back of the written rules of use. What are these? What do they do? I can not help but ask my grandmother. Grandma told me that this is called a food stamp, the time of the ticket is called