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

2?????????

3???????

4?????????

5???????????

??????????,??,???????

?????

??????,?????????

??????,???????????

??????????????????,?????,???????????,????

?,??????,??????????????????,?????????

?????????

?????????,?????

????,???????,???

?????????,????,??????????

??,?????????

??????,????,????,?????

????,???????,????,?????????

????,????,?????

??????????????,???

(???????????)

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