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