?? ????????????5%?7%
????:1???????:????vx
2?????????
3????????????
4?????????
5???98?????
?????9?????24??? (?????????? ??)???????????24?,?????25??????????,????5%??7%????
???? (?????????)????? ? ??,??639???????(?,?????????????)??669?????,???????????????????475?499???879????????939????,?659????????705??????
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