在二级检查保养中,要()ZF动力换挡变速箱液力传动油的滤清器,化验液力传动油。
A.更换
B.清洗
C.检查
参考答案:A
综合开拓
They made the children ________every morning.
A.exercising
B.to exercise
C.exercised
D.exercise