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

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

?????6???15? ???????,?6?15???18????:16?????????,???????????????????,????6??????????16?????????,????????????????????????????????????????????????????????????????????????35~36????????,?????????????????????????????????????,??????????????????37~39?,????40??????

17-19?????,??????????????????????????????????17??,????????????????????37~39???????????,???40?????????

??????:????

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

1?????;

2???;

3??????????????????;

4????????

???:??