【简答题】Can you imagine living in the desert for a whole year, watching the activities of a group of busy ants? Deborah Gordon did exactly that. She finally found out that there were four main groups of worke...
【简答题】阅读理解。 A group of frogs were traveling through the forests, but unluckily two of them fell into a hole. The other frogs tried to help them. When they saw how deep the hole was, they cried to the two fr...
【简答题】A group of frogs were traveling through the woods, and two of them fell into a deep pit. All the other frogs the pit. When they saw how the pit was, they told the two frogs that they might as well be ...