??2???14????????????????? ??,2??????14?????????????,??????

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

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

??????????????????,??????????,????????????,???????????,??????????????????,??????????????????????????????,?????????????????? ????????????????????????:?????????? “????”_????

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

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

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

3???????vx

4?????????

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

??2???14????????????????? ??,2??????14?????????????,??????

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

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

??????????????????,??????????,????????????,???????????,??????????????????,??????????????????????????????,?????????????????? ????????????????????????:??????????