精选优质文档-倾情为你奉上高一英语下学期期末综合测试题卷一I. 阅读理解：A.Do you know about Dolly, a famous sheep? She was created by cloning more than ten years ago in Scotland. Cloning is famous throughout the world. It is an experiment to make an animal that is exactly like its parent. So far, scientists have cloned rabbits, sheep, cows, mice, pigs and some other animals.But what is used in cloning? Its DNA. There is DNA in most living things, including human beings. Your DNA is the same in every part of your
