????:1?????:????wx??

2???????

3???50??????????

4????????????

5?????????

??????????????2?????????15??????????? 15?????U20????????A???,??5:2????????,?????

  ?????? ???????????:??

??????,???U20?????,?????????U20????????????????????????????A????

?????????,????????????????2:1??????????:?????????,???,??????????

???????,????????????????:??????????????????????????;??????????????????????????????;??????????????????;?????;???

  ????????:??????????

??????12???????????,U20?????????????,????,?????????,??????????????,????8?????????????????????

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

??????,????,??????80???????,?????????????????,????????5:2????????????

????????????,?????????1/4???,??????U20??????(???)

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