????
???壺????
?????????????
??????100
??????
????????????????????????????????????????+40??pb
??????????o????????????????????????+10??
?????????????????????+10??
???????????
?????5??
????????????????
????0
??????30
??????0
???Σ?0
??????150+30??=180?????????????????????
??????120+15+20??=155??
??????2500+200+120+200??=3020??
??????1500+100??=1600??
???????????????????????????5??????+200??????+100??pb
??????????????????30?????????????????5???????
??????????3/12??????????????+120??????+15????????+1??
?????5/10???????幥???????80??5???????????25??????????????
??棨1/10???????+5????????????????20????????10??????+1????????????10?????????80??
???????4/10???????180??????20?????????????????50??
?????2/10?????????????????8??
????????????????????+30??25??????????д???????x???????5??5????x?????5?????????????10??????????Ч????
???????????????????+20??10?????????????????????????????????????塱??
??????塪??60?????????????15??????+20????????20?????
???????????????????????+200?????????+1?????????+5??
??????????????????????+10???????????????????
????????????????????????????350??????????????10?????
?????????????????????????????????????????????
????????
??????80
??????100
??????1400
??????2200
??????????硪?????????????????????20??????????
????????????????????????????????????????100??5??????????????????????÷?x????????????????????????100??