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

2???????

3??????????

4??????vx

5??????????

?????????????????8??19????? ????19?????????????,????,8?19??????????????,????????????4410?4411????????????????,?,?????

?,3??????????????24??,?4410????????????,??????????,????????????????????????21551????????????????,???,???????

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

?,??????,????????(?) ????????????????:???????????????????????????????