?????1??23????? (????????? ?????????)22?????43?,???????????2:1???????

??1:1??,??3:2?????,???

1??22????,???43?????????????????,???2:1???????? ???????????(??)?????(??)????????????????????? ?? ????????

22?????????????????????,?????????????????????,???,???????????????

???,??????,?????????????????????????????“??”?????????????,??????????1:1?

???,?????????????????????????85?????,???????“???”?,?2:1,???????

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

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

??

??:???????????,??????????,??????????????