题目

阅读理解Onlineshopping is a type of remote transaction as it is a purchase agreement reachedby two parties through the transmission of network information. The purchaserplaces an order and makes payment, and the seller is required to ship themerchandise within 24-48 hours. However, if the seller is out of stock, thenthe merchandise cannot be shipped on time, so the consumer faces the risk ofhaving to wait for a long time. If there is a holiday, the merchandise tends tobe delayed due to the logistics(物流)companies being busy. Moreover, your merchandise may be damaged duringtransportation“节约光荣，浪费可耻”，据统计我国每年浪费粮食约8000000吨，这个数据用科学记数法可表示为    吨．