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