对于视觉障碍旅客，我们需要介绍如下设施设备。 A.呼唤铃B.阅读灯C.空调旋钮D.轮椅正确答案：呼唤铃；空调旋钮

（中译英）您头顶上方的这个是空调旋钮。 A.The call button is over your head.B.The lavatory is in the front of the cabin.C.On top of your head is the air conditioner knob.D.On top of your head is reading light.正确答案： On top of your head is the air conditioner knob.