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

2?????

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

4??????

5?????vx

???6??????????????14????? (????????? ?????????????)????????????????13???,??????????,???????????????????????,??

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

??????????,???210????????????,??,???????????,????????

???????????,???,?????,??,????????????????30?,??100??????

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

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

????????,???????????????????????2???????????,?????10??????????????????????????,??,????????????????????,???????????????????????

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

????:???????????????????