服务组织的自我评价，每年不应少于（ ）次；评价结果应在车站公示，宜向社会公布。
A.1
B.2
C.3
D.4
Please stand firm and hold the handrail，do not run or walk in the wrong direction. 此句应用于（ ）场景下。
A、刷卡进站
B、上下列车
C、搭乘扶梯
D、进出车站
中文语句“请注意，因车站进站闸机故障，请听从工作人员指引，从临时通道进站，不便之处敬请谅解。”翻译成英文语句为：（ ）。
A.Your attention please! Please add-value at the Custermer Sercice Center as the Value Machines are not working. We apologize for any inconvenience this might cause.
B.Your attention please! Please buy ticket at the Custermer Sercice Center as the ticket machines are not working. We apologize for any inconvenience this might cause.
C.Your attention please! Please follow staff directions to enter as the entry gates are not working. We apologize for any inconvenience this might cause.
D.Your attention please! Station lighting is under emergency repair but trains are still running. Please contact staff if you need any assistance. We apologize for any inconvenience this might cause.
严禁携带充气气球进站，译成英文应该是（ ）。
A.No balloons are allowed in metro.
B.Please don't squat, it is dangerous.
C.All passengers, please be careful and stay back.
D.Please stand behind the yellow safety line while waiting for the train.
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