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

????:1?????????:???????
2?????
3?????????
4???????
5?????
???2?????????????20?(??????????? ??????)???????????????,?????20???????????????,??????,??1??????,???????????????????58????????????????,??????50?????????????????

?????????????17???????????,????????????,???????????,??,???????????,???
?????????,?,?,?,???????????????????????,?????????
?????????????????,????????????,???????????????????,????????????????????????????????,????????????????,?????????????????????????,???????????????,??,?????
??,??????(????)
