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

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

3????????

4????????

5????????????

?????,???????,??,???????150????

???????,???????48??,????5%??????????????????????,??????20%??????????????????

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

???????????,?????4????????:

??8?????????,???????;

?????????????????48??????????????????????????????8??,???????????5%???;

?????????24?????????48??????,?????????10%??;

????24????????,???????20%???

?????????,??????8???????????,????????????8????,?????,????8???,???????5%??????

??????????????????48?????????????,??????5%????????,??????20%??????

???????? ????:?????,?????,???????????,???????????????????,?????????????,???????,????,?????20%????????????????????????????????,??????,??????,??????5%???????????????,????????,??,??????

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

???:????