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