【单选题】How is it from your home to school?
【简答题】建筑内部给水消防报警阀有() 、 () 、 () 和 () 四种类型。
【单选题】How long is it from your house to your college?
【单选题】How long is it from your house to your school?
【简答题】被动防撞系统和主动防撞控制系统中最关键的部分都是( )。
【单选题】How long is it from your house to your school?