?? ???16.2????????? ???4.7?????
????:1????????:?????vx
2???????????
3???app????
4????????????
5???????
???12?26???? ??,???????????????????????????,??????????????16.2?????????,??4.7??,??2.5??;?????????????????8000???,??3000????,????????????????2300????
???,????????43?????,????11.7%??;?????51.8??,????????????3%?????????????,???
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