??2?????????6?? (??? ?????????)??????????????6???,????????2??????????????5????????????????,???????

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

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

?,????????????????????????,??,?????????,????????????????6000??(??????) ?????????????:????????????????????? ??“???????????”

?? ??????????????? ??????

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

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

3???????

4?????????vx

5?????????????

??2?????????6?? (??? ?????????)??????????????6???,????????2??????????????5????????????????,???????

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

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

?,????????????????????????,??,?????????,????????????????6000??(??????) ?????????????:?????????????????????