????????????????????

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

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

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

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

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

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

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

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

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

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

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

(?? ???????)