德阳市2014
高考英语二轮短文类训练（4） 及答案或解析 dolphins (海豚) are not fish, but warm-blooded animals. they live in groups, and speak to each other in their own language. in this they are like other animals, such as bees and birds. but dolphins are very different from almost all land animals. their brain is nearly the same size as our own, and
