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

2???????

3?????????

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

5??????????

???????????????:????,5????1724?????????,?18.6????????????,?????????14%?????????13%,?,??????????????,?????,????????????

??,??,?????????????????,????????????????,5???13????????????,????????????

???????????,???????????????,??????????,??,???????,????????????????????????11%?26%?11%?

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????:“?,???????????????????????????,????,?????????????????????????????????????????5%?” ???:?????????????