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

2?????????

3???app????

4???????

5???????

??????????6?????????????????18??????????? (? ????????)????????18????????????????,???????1???????5???????????????????,??17.5%,???????????????????????????50%?

??????????????3???,????????????????????«??????»???????????,?????????,?,7?????????????????????????????????,31???????????(?????)???????????????????????????

???????????????????????????????,??????;??64.4??(?????????????????????,?)?,??5??????????????;????,????????,???,???????129????????,?????????????????????????????????

?????????,?????,????????????,1??5??,????80%,???????????????????????????????????????????????????????,??,???????????

???21????????????????????????,???,????????????????????,??????????,????(??) ????????????????:??????????