There are many different kinds of parrots in the world. They can not only(不但)live in the tree, but they can also(而且)live on the mountain. Some parrots are quite big. Some are very small. Many people like them, because they often have beautiful colours, and because they can “talk”.

    Do you know why parrots can talk? But most birds cannot. Perhaps, parrots can “talk” because they have big, thick tongues. But some other birds that cannot talk have big, thick tongues, too. So we don't know why parrots can talk.

燃烧是生活中的一种常见现象。下列有关燃烧或灭火的说法错误的是（）

读“沿我国某山地南北向剖面及1月平均气温变化”图，完成下列问题。