??????????????????????????????12??????????????????22? ???:??????????????????“?”:??????????????????

??? ?????

“???,????,?????????????????,???????????”??“90????????????”?“??????????????”?????????????????“?”???

“??????????”“??????”……??????????“?”?????????,????????“?????”?2000???????????????????????,???????????????,???,???????????????????“????????”?

12?????????16??,??“???????????????”????????????????“???????????????”????? ??????????????????????? ??????????????????????

?,?,?????????????????,????“?????????”?

“??,????????????????,???,???”???,???????

12????????16????????,???????? ?????????? ??

???????????????????????????????????,???,???????“???”???????????,??

“?,???????????2000?,??”?????????????????,???

???,????

“????????????????‘DNA’,????,??,???”????????????,????????,??????????????????????????????,???

12??????????16????????????,???T???????????????? ? ????

??????????????,?????T??????????????,????????????????????????????“??????????????????”,???????????????T?,??20??,????T??????

“??????????????????240????????,???????????????????”???????????,???????????,?????????????,“???????????????????”????????,??????(?????)

??????????:?????? “???????”????

?? ??“?????????”:??????????

????:1????????:?????????

2?????????????

3???????????

4????????????????

5????????

??????????????????????????????12??????????????????22? ???:??????????????????“?”:??????????????????

??? ?????

“???,????,?????????????????,???????????”??“90????????????”?“??????????????”?????????????????“?”???

“??????????”“??????”……??????????“?”?????????,????????“?????”?2000???????????????????????,???????????????,???,???????????????????“????????”?

12?????????16??,??“???????????????”????????????????“???????????????”????? ??????????????????????? ??????????????????????

?,?,?????????????????,????“?????????”?

“??,????????????????,???,???”???,???????

12????????16????????,???????? ?????????? ??

???????????????????????????????????,???,???????“???”???????????,??

“?,???????????2000?,??”?????????????????,???

???,????

“????????????????‘DNA’,????,??,???”????????????,????????,??????????????????????????????,???

12??????????16????????????,???T???????????????? ? ????

??????????????,?????T??????????????,????????????????????????????“??????????????????”,???????????????T?,??20??,????T??????

“??????????????????240????????,???????????????????”???????????,???????????,?????????????,“???????????????????”????????,??????(?????)

??????????:??????