夏天快到了 ,叔叔要进一批电风扇 ,并且还要兼做冷饮生意 .但是 ,任何生意都是既有收益 ,又有风险的 .而且 ,电风扇和冷饮销售的好坏 ,与天气情况最密切 .所以 ,我们通过对二者关系的研究 ,来确定到底卖什么赚钱多 ,而风险又小 .做生意的收益可以看成销售总额与经营者所支出的 Summer is approaching, and the uncle needs to enter a batch of electric fans, and he must also be a business of cold drinks. However, any business is both profitable and risky. Moreover, the sales of electric fans and cold drinks are the best and the weather conditions are the highest. Closely. Therefore, we research through the relationship between the two to determine what to sell in order to make more money, and the risk is small. The income from doing business can be seen as the total sales and the operator’s expenditure