①有两个美国科学家做过一个有趣的试验。他们在两个玻璃瓶里各放进5只苍蝇和5只蜜蜂,然后将玻璃瓶的底部对着有亮光的一方,而将开口朝向暗的一方。过了几个小时之后,科学家发现,5只苍蝇全都在玻璃瓶后端找到出路,爬了出来,而那5只蜜蜂则全都撞死了。②蜜蜂为什么找不到出口?通 1 There are two American scientists who have done an interesting experiment. They placed five flies and five bees in two glass bottles, and then placed the bottom of the glass bottle on the bright side and turned the opening toward the dark side. A few hours later, the scientists discovered that all five flies had found their way out of the back of the glass bottle, crawled out, and the five bees were all killed. 2 Why can’t the bees find export?