??
????????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?????(?) ?????????????:?????????
?????????
????????? ????????????5.6??????????????