2014年12月英语四级听力真题短文(三篇)
2014年12月英语四级已经结束，接下来出国留学网带大家回顾本次听力真题，同时为大家提供2014年12月英语四级听力真题及答案，供大家参考！ Passage 1 Scientists know how twins were born, now though, they are trying to explain how being half of the biological pair influences a twin’s identity. They want to know...