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

2??????

3?????????

4????????

5??????

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

??????????????????????,???3????????????????????,??37%?????

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

???????????,?????????,????????????,?????????3600??????2.4?????????????????

????????????,??????????,?????????????VR????????;??,?????????????,????????????????????????????

??,????????????????????????????????????,??50????????????,??????,???????????????????,?????????,???????????50%?????????

??????????,?????????????????????600??????????????,????,????????????104.55????8???154.61??,?????????????73.57?????

????,?????????????????????,???????;??????????,????????????????????????????,?????????,?????

?????????,?????????,??????60??2696.9????,???????20.9%;??20.6?????????,????????????????????13.5%;?????????????? ????:????????????