????:1????????:?????600???

2?????????

3?????sz??

4????????100???

5??????200???

11?22???,??????3????????DNA????????????,3?2007??????????????,17??

2007??????????2???????14??,5?27?????????,8?18??,?(???,?2??????????)??(?,??????????2???????????????)????????(??,?2???????)???3????????30?????????????,??“?”???????????

?,?,???????????????????????,???17????3??(2???????????1?)???3????

????????????????????,?,????????(? ?????)

???:?????