?? ???????:12????????5.2?? ??????52.5%
????:1?????????????:??????95?98
2???????????
3???app????
4???????
5????????
12???????????30??,???????,????12????????(12??1??????????????28??????????????)????????????:?????,??????????,?????????4??;????,????????????
?,????????,12???,??????????????2.9?,???????????????????????1~4?;??????1~4??????????????,??????5.2???????,?52.5%???????,??4????????,??(????)
????:????????