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