?? ?????????? ????????????
![](https://image.chezhanri.com/2019/0424/20190424173031403.jpg)
????:1??????????:??????
2???????????
3??????
4????????
5??????????????
??8????6?? (?????? ?????????????? ?)?,?????????????????????????????,??90%????????,????????????70%?
????????,????,????20????????????1????????????????????,????????????????????????
![](http://i2.chinanews.com.cn/simg/ypt/2024/240806/a54cb682-e471-4814-8106-bb1a924da7fc_zsite.jpg)
??????,?????????????????????????????????,??180???,???????????????????,??,????????????????????????
???????????????????????,????????????????,??,??1?????????????????????????????????????,??????3?20???????????,??????,?????????
![](http://i2.chinanews.com.cn/simg/ypt/2024/240806/ab436952-6bd8-4e84-8e38-24e0963b8ee1_zsite.jpg)
????????:“???,?,?????????????????,????????????,??????????,???????????,???????????????????????”
?????????????????????????????????????,?,??,??????????????30.2??????????????????????????17.3???????????????????????????????????21.2?,???
???????????????:“???,????????????????????????,???????,?????????????????????,???”
?,????,?????????????DNA?????(???????????)
????????:??