车站能力约束限制了客流抵达站台及列车的效率，它主要受（ ）的影响。

A. A. This is your card. Swipe it and then you can come out.

B. B. Hold the card in your right hand and swipe it here.

C. C. Please wait for the train at the opposite platform.

D. D.You can return the ticket at the Ticket Center.

A. A.确认道岔开通方向正确、状态良好且已锁闭

B. B.确认接车线路空闲

C. C.引导进路的接近区段有车占用

D. D.关闭相关信号机

A. A.表情自然

B. B.着装发型

C. C.佩戴饰物

D. D.规范上岗

A. A.No balloons are allowed in metro.

B. B.Please don＇t squat, it is dangerous.

C. C.All passengers, please be careful and stay back.

D. D.Please stand behind the yellow safety line while waiting for the train.

A. A.150mm-300mm

B. B.300mm-450mm

C. C.450mm-600mm

D. D.600mm-750mm

A. A.清车（清客）

B. B.引导

C. C.隔离

D. D.疏散

A. A.列车自动驾驶

B. B.列车自动控制

C. C.列车自动监控

D. D.列车自动防护

A. A.播报及时

B. B.简洁明了

C. C.清晰准确

D. D.详细叙述

A. A.车站停站时间

B. B.列车间隔时间

C. C.列车长度

D. D.车站面积