?? (??????)??????????????????????
????:1??????500????:????????
2????????vx
3??????
4??????????
5????????
?11???????????????25????? (??????????? ???????????)?25?????
??????????,???????????????????????????????????????????????????????????????????7????????????,??????????????200???????
?????,?4????????????????18??????(???????????10??)????????16????????????32?????40????,??1020???????(????,????????),??3???????????????????????,?????????
????????????“??????”??????
???,?????122?13??41???????????(?????????)???,?23.18???
??,????????247???1200??,?????5000?,??????2350???????????????????????(?) ????????????????????????:???