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

2??????????

3???????????

4???sn???????

5????????

???9??20???????? (?? ????????????????)“??”????????“???????”,????????????“????”??????????20??????,?????8??,??452.3?????,?????22.2%?

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

???,??????????8???????????,????????102.9?????????

?????????????????????“??”????????,??WIFI????????????????,?????,??8??,??????????????????????????8.1??,????24.2%?

?????????(???)??,????????1000?,??,?????,???????????????????8???????,????????????4.56??????????????

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