?? ?????????? ??????????1000??
????:1?????vx:??300????
2?????????100
3???????
4???????????
5???????
????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???(????????????)
?????????????????:?????