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

??,?4??????,??????13??????????,??4.5?????????????????,??,?????,?????“????????????????????”,??????????“????”???(???? ?? ? ????)

???:????

??“?????”

?? ????????“?????”????:???

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

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

3???????

4????????

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

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

??,?4??????,??????13??????????,??4.5?????????????????,??,?????,?????“????????????????????”,??????????“????”???(???? ?? ? ????)

???:????