题目

假期中你一定参观了一些博物馆吧，结合并运用本单元所学，把其中你认为最有趣的一个介绍给我们吧。 答案：Last summer holiday, I visited an insect museum. I saw ants, bees, butterflies and other insects. Some of them were beautiful, but some of them were very ugly. I learnt a lot about them there. I bought a toy bee. It was cute.两个不同质数的和一定是偶数．______．