?? ???“???????”????
????:1??????????:????????
2?????????
3??????v
4??????
5?????????
1?4???,?????,???????? ???? ? 1?4???,???,????“??”????????? ? ? 1???4?,?,???????????“???”???????? ? ??? 1???4????,??,“???”????? ??? ? 1?4????,?????????,?“???”????????????? ? ????? 1?4?????????????,???,?“?”????????? ? ???? 1???4?,??????,?????“???”????? ???? ??? 1???4??????????????????,?????,“?????????????”??????? ????? ??? 1?4?????,?,?????“???”??????? ??? ????? 1?4?????,?????,?“?”?????? ? ????? 1????????????????4???,?,?????????????“???”???????? ? ? 1???4?,??,?????????????“???”?????? ???? ? ??:??