She went to see the [u]      [/u] in the zoo. 未知类型：{'label': 'questionDesc', 'content': '请选出正确答案。', 'isMemberControl': 0, 'type': 181} A: giraffes B: girraffes

What do we learn about deserts from this text A: Deserts can change into green and fertile areas. B: Certain areas have always been desert. C: Deserts were once the home of elephants and giraffes. D: Deserts have been growing since the beginning of the worl