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

2???200????

3?????????

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

5?????200?????

7???????????????????????1?????????????,?????7??????31????????,????300??????????????20??????????????????????,??????????????,?,???

??,????,?????????????D6724???????????,???????,?16?????????,????????????10?????100??????????????

??,??????????????,??????????????????12306???????????????????12306????D6724??????????????,????,????

?,????????D6724?????????????,????,?????????????(????????? ???? ???????????????????? ???????????????????????? ?? ????????????)

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