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

2???????

3?????????

4??????

5????????

???????????2??19????????? (????? ???? ?????)??????????????19????

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

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

?????,?????????????????????????????????????????,???,???????????6????,????????1.2??????????????,???,??????????????(????????????) ?????????????????????:???