?? “2+4+3”?????????????
????:1??????????:??????wx
2??????150???
3???????
4???????150???
5????????????
1?????????????22??????????,????????????????????????????????
???????“???”?????,?????????????????“2+4+3”??“2”????????????????????????????,“4”??????????????????????????????????????,“3”???????????????????????????????
????????,??;???????,???????1300??,5800????,????????????????????????????,????,??????“????????????????”????,????????????????,???????????(?????????? ???????)
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