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

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

3???929598??????

4????????

5??????????

???????????1?20?????? (? ????????)???A??20?????????????(?)?????????????????????????????????,????????????????????????????,????,???,????“?????”?

??,?????????????3244??????????,??0.08%;??10256?,?????0.94%;????????2104?,???1.81%?

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????,??????????????,??????,???????????????????,?????????????????????????????????????????,????,???

????????,??????????????????????????????,?????????????2.4%?2.31%????1.83%,??????????????,?????????????????????????????????10%?(???????) ?????:??????