?2??15? ???????????,????15??????,???????????????????6.4???????,??????????

???????????????????,??15????????????????????4?????48?????,?-???(?????????????49.92?????????????,????????????88.28??????????????????)?6.4?????????,?????????????

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

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

?? ????????????6.4???????????

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

2???app??

3????????

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

5??????????

?2??15? ???????????,????15??????,???????????????????6.4???????,??????????

???????????????????,??15????????????????????4?????48?????,?-???(?????????????49.92?????????????,????????????88.28??????????????????)?6.4?????????,?????????????

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

???,??????,??? ????:???????????????