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