?12306????1??21???,??2?????4????,?????????????

??12306?,??,???????????1???21???9?????????????????????,??????2.35??????????,??????20??2129.5??????????

???,???,?????????????,????????????????,???

?,??,???“?????????????????????”????“??”???????????????????,??????,??????????,??

(???????? ????????????? ?? ????)

??:????????

??

??:???????????,??????????,??????????????