?? ??????????4.7??? ???????
????:1?????????????:?????????????
2?????????
3?????????
4?????????
5????????????
?????11???????????22???? (?????? ?)?11??22???20???40??????4.7??,????????????????
???,11???22????????????20??40?(?23.21??????,?????120.23??????????)???4.7?,???15??????
?,?????????????,?????????????????????????????
??,???????????,?????,??
????????????????,??200????????????5??4?321???,??2024?????????????4??????3????7.3????,??168??(?) ???????????:??