????:1??????????:????90????????

2???????????

3???????

4???????

5?????vx

?????(???????? ???????)“????”?????????????????????????

???,????,10???????????4.8%,??????????????1.6??????,?????????????????5%,?????1.7?????????????????????????????,??10?????????????6.5%,???????

???????????????,????????????10???????6.3%,????????????1.2??????????????????,???????????,?????????????????????????????,?2????,??3??????

???????????,???????????,????,10???????4.6%,?????????????3.9?????????????????11.2%,????9.6????????????

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