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

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

3???????sn

4??????????

5???????

??2??????5? (???? ??)??????5???,???(1??28??2??3????,??????),?“????”??,?????364????(??????,????),???8.3%?

???,??????208????,????11%;?????156??????,??5.1%?????????????8%?

?,????“????”????,??????????????????????,????????3C??????????

???????????,????,???7.1???,?????12.6%;????????7766???????16.0%;??7.1??????,????8.2%?

?????????????????????????????????????,??,?????????????,????1.45??,??????????

?240??“??”???,????4.6?????????,?????????????????31????2220??????,????????????16.6%?16.5%?

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