?? ?????????? ??1000??????????
????:1????????????:????????
2???????????
3????
4?????????
5?500??????
?12????28???(????????????? ??)?28??,???????????????(?????????????)??????,?????????????????????“????+??”????????????1000????,?705.1????338.3?????????
???????????28?????????????????????? ??????????????44.2??,???????????,?31?????26??,????14????????????????????,????????????????(????)??4???????????????,??????????????????
?28?????????????? ????19.7????????????????,??????????????????,??,?????????????,??????????????????(???????????????????)????,????????????57.9??
????,??????200????????????????????????,????????????????????????????????????,???????,??,??“???”???????????
???,??????????????1000??,??,??????“??”???????????????????????????????,?????????,???10?(??)??173????????“??+?????”????,???????????
??????????,?????????????????????????????????“????”???????“??”,????,????????????3?????,5?,9?????????,12????9?,?????
????,??????????????,??????12???,???8?????????????35?????????(????)
?????????:???????????