改变社会环境和社会条件，防患于未然的预防主张是( )
A．罪前预防
B．罪中预防
C．罪后预防
D．罪中和罪后预防
参考答案：A
— ____ does she live from school?
— She lives 10 miles away from school. [ ]
A. How far
B. How long
C. How much
挖土机与汽车相配合时“双装法”，用以挖掘机为主的作业。
