??
???????????,??????,????,??150?????
?????????????,????????????????48??,??????5%??,????20%????????????????
???12306???????,?????????????????????,???????????,??,???????????????????
???????????,???????4???????:
????????8??????????????????,???;
?????48??????????????????8?????????,????????5%??;
?????24??????????48?????????????,??????10%????????????;
??????24???????????,?????20%???????
??????,???????8??,???????????????8???????????,?????????,????8???????,??????5%????????????
??48??????,???5%????,????????20%???
????? ?????:?????,?????????,????????,??????????????,??,??????????????????????,???????,?????20%??????????????,???????,???????,???????5%?????????,??????,?????????,?????????????????
(??????????? ??)
????????:?????????????????
??????????????????????????????????????