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

2?????????

3???app??

4??????????

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

????????????2?????????8?????????????????? (???????????????? ???)????????????8??,??1??,??,?13.6%??17.6%?

????1???,????????????????218?????,???????173?????????????,??????????????????????????????????????????????????????????????100???????????,???,??

??????????????173??????????? ??

?????,??????????????????????,?1?????????:?????40%,????????16%,?????8.2%?

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

???1?,“????”????20.9%,?15.5%;??????,??????????14.2%?“????”(??????????)?????54.4%?

????????????????????????????????????????????????????,??20????????

????,???????????????????????,???????????,???????????????????????,???(??)

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