?6.4??27???? ???????????

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

????????1?21????????? ??????????,21???????????17??,???6.4??????????????????????,?????????????????27????????,?????

?????,???????????11???,??55??????????????,?????????????????????????????????????????????????????5?????

????,??,??????????????,?,????????????????????????????,??????,???4?????????10??????

???????????,???????????????10?,???22?????????????????????,??????????????????????

?????????,????????????????,????????????????????21??????????????????,?,?????,??????????????????,???(????????) ?????:????