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

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

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

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

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

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