根据驱动原理，公铁两用车的转向采用_转向

A. binwalk
B. acunetix wvs
C. IBM appscan
D. NetCat

A. elect 1,2,3,4,5 from inforamation_schema
B. order by 数字
C. 通过union select null，增加null的数量逐个去试
D. order by 列名