A. DNA is characteristic of a region. B. they are beyond doubt of common ancestry. C. DNA strand has the ability to identify individuals. D. their unique identification can be provided via DN 参考答案:B 答案解析:题干的意思是对第一句中“there are also regions of the DNA strand(也有一些区域具有同样的DNA线谱)”的改写,原因就是前面提到的“because it is i