?? ????“????” ??????????????
????:1???????:????????
2?????????????
3?????
4?????????
5???????????
????10??????????????????????????10?? (????????????? ???????)????“???????????????”,?????,?????“????”????,????,???????300???????????????,???
??10????????
?????,?????????,??“?????????????????”,????“????????????????????”,??17??21??????,???206??8.4?????????????????????,??????????DNA??????????,??“????”?
????????,??,???????,?????????????????????????????????????????????,????????????13.7???????,???????????;?????,??65??????????????
???????????????????????,?????????????????“??1??????”???????????“????????????????188”???????,?????????;????????????????????????;“?????2000”???????????;“????”?????;“??????”??20????????????
?????????????????,??????10???????????????18???19?,???“???????????? ??????????”?????,????????????????????????????????????(??) ????:????