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

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

3?????????

4?????????

5?????????

???(?????????????):???????,??,??????????????

??,??????????,????????????200????????????,??????????????????????????????????????????????12??,??????????????????????

?????????????,???????????,?????????????????,??10%?????????????,??????20%???,???????,????6000????,???????????

???,????????????????????40??,????????30????????????????,?????,?????????????????????????????????????,???????????,??????,????????????????????????????,??????,?????????,??40%?

?????,??12???????????,????????????????5.0%;????????????10.6%,????,?????????????????????????????32.3%?9.6%?9.0%? ????:????