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

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

3???????????

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

5?????????

???????????????1?????2???????????? (?? ?????????????????)????????2???????????????,??????????28??????????????????????????,???????????????,??????????????????

?????????????,????????????????????28?????;????????????????????????????,??

???????????,??????????????,????????,??,????«???????????????»??«?????»??,????28??,?,??

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