也许你发现,现在的西红柿不如小时候那么好吃了;也许你发现,一些偏远农村种植的西红柿比超市里的西红柿好吃。这是怎么回事呢?人们在培育西红柿的过程中,总是筛选那些颜色一致的浅绿色西红柿,淘汰掉深绿色的西红柿,这样很容易确定西红柿的采摘时间,使得西红柿运送到超市后刚好变红。经 Maybe you noticed that the tomatoes are not as good as they were now. Perhaps you find that tomatoes grown in remote rural areas are better than tomatoes in supermarkets. What is going on? In the process of cultivating tomatoes, people always screened those same-color light green tomatoes and eliminated the dark green tomatoes so that it is easy to determine the picking time of the tomatoes so that the tomatoes just change after being transported to the supermarket red. through