接车进路始端信号开放后,采用紧急关闭信号手段——区段故障解锁股道区段,则进站信号关闭
参考答案：错
数据库系统中实现各种数据管理功能的核心软件称为 【4】 。
I understand ______ preparation that staff must put in under pressure to meet the deadline.
A．more than the enormous amount of
B．better than most the enormous number of
C．better than most the enormous amount of
D．fewer than the number of
