调车人员在车列起动前，必须确认进路上的信号机显示状态，（）看远不看近或看近不看远。没有信号或信号不清不准动车。在运行中要认真逐段确认进路上的信号。
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You plan to use the In Database Archiving feature of Oracle Database 12c, and store rows that are inactive for over three months, in Hybrid Columnar Compressed (HCC) format. Which three storage options support the use of HCC?（）
ASM disk groups with ASM disks consisting of Exadata Grid Disks.
B. ASM disk groups with ASM disks consisting of LUNS on any Storage Area Network array
C. ASM disk groups with ASM disks consisting of any zero padded NFS-mounted files
Database files stored in ZFS and accessed using conventional NFS mounts.
E. Database files stored in ZFS and accessed using the Oracle Direct NFS feature
F. Database files stored in any file system and accessed using the Oracle Direct NFS feature
G. ASM disk groups with ASM disks consisting of LUNs on Pillar Axiom Storage array
站内无空闲线路时，不准接入挂有车辆的单机。
A. 正确
B. 错误
用重复循环法清洗4个以上货舱后清洗液应（）。
A. 加入纯净化学剂
B. 配制新的清洗液
站内无空闲线路时，只准接入挂车数少的路用列车。
A. 正确
B. 错误
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