The bird and the tree are friends．The bird often sings songs in the tree．Autumn comes．The bird has to fly to the south．Spring comes.The bird comes back，but she can’t see the tree．Grass tell her some workers cut the tree down and took him to a factory．Then the bird flies to the factory．The workers told her they cut the tree into wood．They used the wood to make matches．Then they took the matches to a village．The bird flies to the village and sees a girl used the last match to make the fire．The bird sings a sad song to the fire．

下列关于蚯蚓的叙述中，不正确的是(　　)

当代学者顾准说:“城邦制度和直接民主两者是相互依存、互为条件的。”雅典城邦为直接民主提供的条件是（   ）