?? ?????????????? ??22???
????:1???????????:???????????
2?????????
3?????????????
4?????
5???????????
???????????9????????????????21??? ???,??21?????,????,??????????,???22?????????
?????:????????????,???????????????????,????(???)?????????????,??13??????6????
???????,?,?,????,???
???????,??????????????????????,????,???????,?????????????
????????????????????????:??????????????????