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

2??????????

3???????????

4?????????499

5??????

??????????2????6????????????????? (?????)???6????????????????,???,????4.36??????????,?5600?????????????,??????????“????????????”???????????

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

??????,???,???????3%?????????????,???????????????????????????????????

?????????,??????????????,?????????????,???????????????????????,???,????????,?1000?????????????19.4%?(??) ???????:?????????????????