?? ?????????? ??????5.4?
????:1??????:??????150
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??(?) ??????????????:???????????