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