???′???????淨(jìng),???′?????????,???′????????
???′????????????????
?????????????????????
1?????????????????????????????????Щ????????????????????????????????ε???????????μ?;
2?????????????????????????500?????????????;
3????????500????????????5000?????????????????????????????????;
???????????????
1????????У??????賿0??????????????1000?????????????????????????????????????????????????;
2??????????????????????????????????????????
???λ?????????
????????????40407???′??澫???????http://austindefensivedrivingonline.com/laycq/