??
?????????????1?30? ????????????,30?????,?5.6????????????,?????21?6.4???????????
???????????????,30?10??11??,???????????5.6??????????,?????10????????,??5???,??????????????10????????4?,???3.2???4.3??????????,?????
??????,????????????????,??????????,????
??????,30???10?????11???????5.2???(?) ???:?????
?????????
????????? ?5.6?????????????????????????