??
??????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??????????????