?? ????????? ??????????
????:1?????????:????
2??????????
3???????????
4???????
5????????
?????????10????10????????????? ????????????10???????10???,????????????,??3:1????,???????????????????????????
???????????????????????:???????????,???????????,????????????3:1???,???2???????????????????,?????
??????????????????????????????????,???????????????,?,?????,?????????????????
??????????????11:7???????,?????????????11:8????????????,??????????????????????,???,?????????????????????
?????????????4??????,???????????,??4:1???????????????????????????????,????????????????????,??????,????????????12:10???????
??????,??????????????,??????????,?????????????,???????????,???
???????????7?,??????????????,?????????????????,???????????????,????????????3:1?????????,????????????
?,????????????,????????????????????????,???????????????(????)
??????????:????????????????