????:1???????:???????95?

2???????

3?????

4?????vx

5?????????

2??????????????????14???,????????????????3?,??13??32?????53???????????????????

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

???????????,???????50?????????????????????????????,???,??????????2.5???????????5????????,???????????????????????????

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

(??????? ????? ????????????? ?)

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