?? ??????????? ???????
????:1????????????:??????????
2??????v
3???????????
4????????
5???????
???????????????????9???22????? (??????? ? ?????????)?????????,22???(?)????????(?????????)“???”??????
?????????,???20???????,????????????????????????,??,??“????????”???,???2??????????1??
???,??,?????????????????“?????”????,???????????,??
“?????????????????????,???,????????????????????”???????
????????????,?,?????,?????????????????????,??????“???????????????,???????????????”??,???????????????????????????
????,?,??????????,????(?????????????) ?????????????:????????