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![](http://n.sinaimg.cn/news/transform/w600h400/20180315/2hnn-fyscsmv9707282.jpg)
????:1?????????:????SPA??
2???????2022
3????????
4?????
5?????????
????????????????2?13? (???????? ??????????)???????????????13??,?????????????????????????????????,???????
?????,???,??????10%?????????????,??2000??????????(??????????)(??????????????,???????????)??1???,???10??????;?1?????,??????????????????10???????????????,????10?????,?????????????100????????????,??3????????????????????,?????1000???????????
?,?????,???????????,??????????????????????????????????,??;??????????????3????????,?????????????50%????????;???????????????,???
???,????????????????????????????????????????,????????,??,???????????(???) ???:????????