????:1?????vx:???????

2????????

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

4??????????

5?????

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

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

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

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