??? ??????426?????????????????

????:????????:???????????

????????????????????????????????12???20?(?? ??????)20????????????????,?????????????30???,????????????????“????”?????500????????,??1000??,?????????

??????????????5755?????,???????????????????????????60?????????3290??????,???16.8????????????????,???6??,???17.5??“????????”????

10??????????????????????20???,???????????????????????,???(???) ? ?

???9?1?????????????“?????????????????”??????,???????????????????????,??????16????????18???,???????426????????,??17??????????????????

??????,“??”????240?,????1?????????????????????????????????????????????????????????“????+?”???,????????????,?????????????,??????????????????,?????,???????

10?????????????????20?,????,???????????(????) ?? ???????????

????,??????,????????????????,??????41??????????,???????????????,????,????????,????,?????????,????????

???????????,????????????,??(???)

????:????????????????????