前天,妈妈给我买来了几个梨和一些香蕉、苹果,我随手把它们放在一起,结果发现了一个有趣的现象。过了几天,我吃惊地发现香蕉黑了、软了,而梨却完好无损。这是为什么呢?难道梨会让香蕉变黑吗?是不是香蕉不新鲜?满腹的问号促使我做了一个小小的实验。于是,我立刻到了水果店买来了十分新鲜的梨和香蕉。我想:这次一定不会像上次一样了吧!可是第二天早上起来 The day before yesterday, my mother bought me some pears and some bananas and apples. I put them together and I found an interesting phenomenon. A few days later, I was surprised to find that the banana was dark and soft, while the pear was intact. Why is this? Does pear make bananas dark? Is not bananas fresh? Full of question marks prompted me to do a little experiment. So, I immediately went to the fruit shop bought very fresh pear and banana. I think this time will not be the same as last time! But the next morning