????:1????????????:??????

2???????????

3???????????

4????????????

5??????????

?????,1????20??????,?????,??1345?????,???????????862??????1?????19??,????????1289.3????????,?????1?20????????????9?,???????12306??2.14????????,?,??

1??21?27??????,??,??,??????????????????????????????,?????????????????????,???????????????????,????????,??,???

1??28?????2????????2????????,????????????????????????????????????????????????????????,?????????????????,?????????,??,???????,??,??,?,???????,?????,??,???????

????,?????,???????????????????,??12306???????????

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

??:????????