12、[阅读理解]【阅读选择】11、This text mainly about . A、 The importance of DNA B、 The role of exercise. C、the birth of a new journal D、the difference between twins
13、[阅读理解]【阅读选择】12、ResearchersChose same twins for their study mostly because they . A.Shared the same DNA. B、looked alike C、had the same lifestyle D.grew up together