????:1???????????3000:?????????

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

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

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

5??????????

??,?????????????????????????(????????)???????“???”???????????????,???????????,“????”????,?????

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

??,??????????????????????????,??15%????????????,?6000??????,???????1???,?????????????????????500?????????????????

??????? ???????????????:?????????,????80%?

1???????19???,??????????????????(????)????“??”???????,????

?????????? ????????????:????,????50%,“????”????60%?

???,?,?????????“?????”????????????????

????,???????4????????,1?20?,??????????????2????????????????????????????????????????????4????????????12???????15%,?????????????????????1????????????????,???????????????5%?,????????2000????????

??:?????