??12?2???? ??????:???“??????”??

????? ????????? ????

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

?,???????????????????1979?????????????????,?70?,????800???

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

???????? ?????????

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

????“??????????”??????????1999??????????????????????,??,?????????????????,????????????????????????????????

????????,?????????????????“???”????????,?????????,????????????????????????????,“??????????”,????8-10??4-6?????

2004??????????????????,????,2007???????????????????,??????????????????????????????????,????,???????????“???”??????????????,??34?????????????????,?????

“????,????????????,??????????5%-10%?????,?50%-60%?”??????“???????????”????????????????????

?????????DNA????,????????????? ???????

1984??,?????????????????????????,?????????30????,??????????80??????????2000?????????????????????????????????

??????????,????,????????4???,??2.5-3??,?????????,????????????

???10???,???????????“?????????????????????”?????????????????????????“??,????????‘??????’?????”?????

?????????????,????????????“???”,????“?????”???,??????,?????????4?5????

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

???:??????????????????? ??“?????”????

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

2?????????

3????????

4???????

5???????

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

?,???????????????????1979?????????????????,?70?,????800???

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

???????? ?????????

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

????“??????????”??????????1999??????????????????????,??,?????????????????,????????????????????????????????

????????,?????????????????“???”????????,?????????,????????????????????????????,“??????????”,????8-10??4-6?????

2004??????????????????,????,2007???????????????????,??????????????????????????????????,????,???????????“???”??????????????,??34?????????????????,?????

“????,????????????,??????????5%-10%?????,?50%-60%?”??????“???????????”????????????????????

?????????DNA????,????????????? ???????

1984??,?????????????????????????,?????????30????,??????????80??????????2000?????????????????????????????????

??????????,????,????????4???,??2.5-3??,?????????,????????????

???10???,???????????“?????????????????????”?????????????????????????“??,????????‘??????’?????”?????

?????????????,????????????“???”,????“?????”???,??????,?????????4?5????

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