???????????? ?5.6????

?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???????(??????????) ???:?????????????