?? ???????????????????2.7????
????:1?????????:??????????
2???????????
3???????
4??????????
5????????
?2???????5?????? (????????? ?????????)??????????????2????????5??,????????????????(1???????????????????28??????2??????4?),??(????????????????????)?????????????????47?2.7?????????????????????,????????????110%?
1????????????????27??,??????????????????? ?????????????,????,????????????????????,??????????????
??,???????????????????,?????97%,????,?????????????????????
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