手摇道岔接发车时，行车值班员须携带转辙机钥匙、摇把、信号灯、插销电话、钩锁器等设备，凭调度命令登乘列车司机室，随车到达故障地点。
参考答案：对
— I've got to go. Thank you very much.
— ______ if you ______ a bit longer! [ ]
A. What nice it will be; can stay
B. How nice it would have been; have stayed
C. How nice it would be; had stayed
D. How nice it would be; could stay
微型计算机键盘上的＜Tab＞键是
A．退格键
B．控制键
C．删除键
D．制表定位键
