????:1?????vx:?????

2?????

3????????

4???????????

5??????

????????(5??)???????????????9??????????????????,?????????????????,???????????????????,9??

9??110.1?????????,????????????????0.2%,?????????????3.4??????????,??,?????????????????,???????????????????????????????

??50??????????,9???8???????????3?14?????????????,??????????????,??????10.3%?9.4%???????????6.2%?

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