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

2????????

3????????

4?????100??3?????

5??????????

????????????????????????9????????????25???? ?,?24??,???????????????????????????????????????,?????????????“????????”???????

???:??

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

?????????????????????,????,????????????,??,????

??????????,9??????15???????????,???,?,?????

??,?3???,???????????,?“??,??????????????????????????????????????????????????????4???????????????”

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

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