?? ???????????????
????:1???????:????????
2???????
3????????
4?????
5????????????
?????1?????27? ??,??1??27??6??????:
?1???????????27???????????8???28??????????????????????8????,?????????????????????????????,???????????????,????????(20~26??????????);????????5~10?????????????,??????????15??????????????????
??:?????????????:
1.????;
2.?????????????????????,????;
3.???????,??????,???????????;
4.?,??;
5.?????
???:??