?????

“??????”

“????????,??????,???????”?????????????6???,?????????????????,??,???

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

“?????????????,???????????????,???”???????,??????????????????,??????,??800???????“???????????????,?????”?????

?????????????????????????,??????????????????????????????????37??????????????????,???????????????????????????????????????????????????????

??????????????3??????????????????,???????????200???????,??????????????????????100????????????????????????????:“?????????????,?????????,?????????????,?????????????????,?,?????????????????,??????????”(??????? ??????) ?????:????????? ??“??400?4?????”????

?? ?????????????“???????????????”

????:1???400?4?????:?????

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

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

4???????

5?????vx

?????

“??????”

“????????,??????,???????”?????????????6???,?????????????????,??,???

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

“?????????????,???????????????,???”???????,??????????????????,??????,??800???????“???????????????,?????”?????

?????????????????????????,??????????????????????????????????37??????????????????,???????????????????????????????????????????????????????

??????????????3??????????????????,???????????200???????,??????????????????????100????????????????????????????:“?????????????,?????????,?????????????,?????????????????,?,?????????????????,??????????”(??????? ??????) ?????:?????????