????:1????????app????:???????????????

2???????

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

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

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

???27?????,????????

??,???,?????19.4????????,???????2.77?,?????0.7%?

??? ?????:???????????80%,??15.26?????????

??,?????,9???30??,??????????????10??1?????,????????????????10?5???????,?????????????????????????3?????????????,???????????????????????????????????,??????????????

??????????????,?????,???????????????????????????????,?????500????520?,????????????

?????????????????????????19??????????

?????,?????19???????????,???,?????????????????

????,?????,??,???,?????????????????????????????????????????????????????????????????????????????

????????????????,??????????????????????,???????,????????????????????“?????????????????????”???

? ????

????,???????

???????,????????????,?????,???

?????12306??????????????,???????27?????,???????7500???????????????????

???????,?????????????????????????????????????????????????????????????????????

??????,??9????????????????????????????29?????10?????????????1????????12306??,?????,??????????????????????????????????????????????????????????????????10???6??8???????????????,?????????,?????????????????????????????????????????????????????????????????????????

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