????:1??????398?????:??????????

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

3??????

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

5??????????

?2?????????????????????12????? ????12??????????,?????

2?12??,??,??? ????????????????????? ??????????????? ?????

?????????????,??????????????????,??????98%???,???????????????????4????“???”,“?”???????????

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

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