?? ?????? ?5.4??????????
????:1?????????????:????
2?????????????
3???????????
4??????????
5????????
???????????11??????????22???? ?,??22???????,??????????5.4???,????“??”?
?,????22??18?45???20?22??????20?40??20?????????43????????21????????29?,???????????????20???40?5.4??????????,?????????????23.2????120.18???????????????????,?????????23.2?????,???7.7??
???????,?,?????????????????,??????????,?“???????????????”??,??????????????
??????????????????,?“??”,???“?????????”?
??????????,22?20??????40?4.7??(??????????) ???:???