?? ????????? ??????????????
????:1???????????:??????
2??????????
3????????????
4?????????
5??????????
1???2???10??01??,????4.8??,????10??????????????????????0.98?????????????????
??????,?????:
????????????????;
?,?????????????60km/h?,??60km/h???
???????????????????????????????????????????,??????????????,??????????????,??????????,?,????????????????????
(????????????????? ?????? ?????????????????) ??:?????????