????:1???????:????????

2??????vx?????

3???????

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

5?????????

?????????2????4???? (????? ???????????)?????“??????????????”“????? ??????????????????”????????240????,?????????4??????????????????,??????????????4.6?????

????,??????????31???????2220??,?????????16.6%?16.5%,????2550?????240?;???6??12????,???????1.5??,??45%,??????????8%?

??????,?????????????????2100??????,????,????1634?????????????5.1%,??????????160.1???(?????,??????)????42.9%?

???????????????,??,??????,“??+”????,???????????????,“???????????”?????????,?100%?

?????????????????,??,??????????“?????”????????????,??????????“????????”????????273????,???(??)20???,????(???) ??:?????????