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

??

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