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

2???app????

3???????

4????????

5??????

??????????6??????28???? (?????????????? ??)????????28???,???????????????????????6??????30??????????????,??6?????15??????,??6?????

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

?????????????,?9.4??,???????????????????????????,???????

????????,?????,?????????????????????????????????,???????30?????,???20???????????????

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

??????,?????,?,?????“????”,???????(?????????????)

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