纵向划分调车区域时,按车流量大小和编组计划的组号多少,以()分别划区。
A.调车线
B.调车机
C.车流大小
D.车流方向
参考答案:A
Being afraid of falling behind the times, he has always been keeping himself ___ of the latest
development of technology. [ ]
A. instructed
B. intended
C. informed
D. demanded
A.记忆
B.怀念
C.记住
D.回想