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