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