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

??

??:???????????,??????????,??????????????